Gravity dredging for GOLD !

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#Flourgoldwizards

[@FlourgoldWizards]

Get your prospecting equipment here ! 👇🏻👇🏻 highplainsprospectors.com/?ref=FGW2023

[@MassholeMachinist]

Hey Jason, this setup looks awesome. I believe you'd get a better venturi effect by adapting up at the beginning to funnel MORE water in. This will force more flow into the smaller pipe creating higher pressure in the line. That will in turn create a greater vacuum on your suction pipe. If you put a restrictor on the suction hose end like say a hose barb or something, that should also increase the vacuum pressure. You may have to adapt up also at the end going into your sluice to drop the pressure again so it doesn't wash out your sluice.

[@timbos8392]

IMO, as a journeyman pipefitter, you need to remove the restricted Y and allow as much suction to be created as possible by the venturi effect. Replace that Y with a sanitary Y and have it reduced with a bushing for your suction line.

[@FlourgoldWizards]

Gotcha !! Thank you 😃✅

[@steveb6103]

​@@FlourgoldWizardsI would increase the intake size also.

[@brandonwallace2118]

The y also as close to sluice as possible like a keene set up

[@Dusky_The_Husky]

Where the stick is, have a PVC T with a Valve so you can get the system started with the suction tube closed, then open the valve which closes the starter intake, and makes the suction tube the main intake. ;)

[@Dusky_The_Husky]

KC over there with a JH Diesel Shirt on. Lol Nice Choice. ;)

[@timothymacmaster7432]

You can gravity dredge with just pipe and hose. No need for the Venturi. Here are the basic principles. The discharge end of your pipe must always be lower than the intake end of your hose. Keep your pipe and hose as straight as possible. No dips and no bends or material will begin to clog up. All connections in your pipe must be air tight. Any leakage will drastically reduce suction. Gorilla tape is great for sealing connections and works even when wet. You need a quick connect system to hook your hose to your pipe. If you use pipe that has a male and a female end,you can cut a small piece off the male end of the pipe and Gorilla tape it to your hose. Start by setting your pipe up first. You want at least two feet of vertical drop between the intake end and the discharge end of the pipe. Place the intake end at least three inches under water. Pin the intake end in place with heavy rocks. When your pipe is set up properly and is producing adequate suction, fill the hose with water and then quick connect to the pipe under water. Your pipe is set up with a female end upstream. To quick connect just plug the male hose end into the female end of the pipe. When this connection is made, seal it underwater with Gorilla tape. Resist the temptation to jam the quick connect connection too tightly. You will need to get it unstuck when you are done. When you are running do not overload the system with material. The art of gravity dredging is in a proper balance of material and water. When properly set up your your gravity dredge will provide suction comparable to that provided by a motorized dredge. Remember, if the intake end of the hose is lower than the discharge end of the pipe your suction stops. Looks like you don’t have much drop in that location. If you want to work that spot you will probably need longer pipe. Aloha

[@FlourgoldWizards]

Exactly where im headed with this, more pipe, theres just no real drops in elevation!

[@grumpypupscratchnskills5385]

Thought on the intake end of pipe.. 8 to 10 inch pieces of 3, 4, and 6 inch pipe adapted to the 2 inch pipe to force more water in should help increase pressure in theory

[@timothymacmaster7432]

@@grumpypupscratchnskills5385 Main problem he was having in that location was not enough vertical drop. You really need at least two feet of vertical drop. Another useful general principle is to use the least amount of pipe sections you can after sufficient vertical drop is achieved. Four inch pipe with two feet of vertical drop will generate enough suction to tear tendons in your wrist

[@user-mj9lz7ze1m]

@@grumpypupscratchnskills5385 Other way around. The large pipe needs to be at the down stream end. You need to create high pressure at the top with low pressure at the bottom. You cannot create additional pressure by creating additional flow larger pipe into smaller pipe. It actually works in reverse. The reduction actually creates back pressure, which slows the flow and reduces the pressure.

[@michaeldonovan6076]

Good Morning to all you global patrons and the FGWT,,way to go,St Patrick shorely will provide your green pans with a little flour gold today if you are fortunet to be panning, May today bring you thousands of little clinkers wishing you a great day and Slauncha from the very heart of Ireland ❤😂

[@FlourgoldWizards]

Irish jig time !!!! 😃✅🍻

[@grasshoppercrews1296]

If i may invvect a little plumbers knowledge,if you use a sanitary T with a long sweep your suction will increase , from two inch reducer bushin down to your 11/4 to adapt your suctiothose

[@FlourgoldWizards]

Excellent!!

[@SECRETCREEKPROSPECTING1776]

Gold scratch fever always gets the best of us. Venturi, picture throttle body and imagine Bernoulli’s principal . 😅

[@FlourgoldWizards]

Crazy aye ? 🤓

[@jimnelson7740]

Jason, just hook your dredging hose to the top of the pipe. You just have to pay attention to the sand/water ratio so it doesn't plug. To use that setup with a suction nozzle, you'd need 50-100 psi, and you just don't have enough slope for that, unless you want to lay out about 1/2 mile of pipe...LOL. Good episode in any case.

[@FlourgoldWizards]

I believe thats my plan 😃✅✅✅

[@kevingriffith4036]

A bell reducer going from large to small in the top end will increase pressure and thus flow down the pipe.

[@FlourgoldWizards]

I like that !

[@steveshort7694]

To stop plugging the hose put a 1/2 inch screen over the end of the suction nozzle ( you're for small gold anyway) it keep rocks and sticks out. I use a garden hand rake to move things around and get to the small sand and gravel.

[@FlourgoldWizards]

Nice !!!!👍🏻

[@jtpalooki7757]

You should take those pipes out for a nice dinner….greatly improves your chances of suction!😳😉👍

[@FlourgoldWizards]

🤣🤣🤣✅

[@realamerican911]

Spring has sprung and we are back in the water! Wooooo! Great video boss. Glad to see you feeling bater and with 3 pups hunting for gold! You must really have the gold fever! 😂😂😂

[@FlourgoldWizards]

More of a gold cold…🤣🤣🍻

[@zorbackadventures]

Leave your suction hose at the top for sure, maybe with a little screen on the end so as not to plug the hose. The key to more suction is elevation from the top of hose to the bottom outlet, hard to do in that creek without 285,384 miles of pvc LOL!

[@FlourgoldWizards]

I have a plan !!! 😃

[@brentgiles5515]

I'm thinking, instead of a restrictor at the top, put a bigger pipe and funnel it into the tube. The more water you can converge into your 2 inch pipe, the faster the water moves through the pipe, creating a stronger venturi effect at the Y point.

[@FlourgoldWizards]

Noted 😃✅

[@FjHenderson]

Yep what timboss said is what I would do. I would even put them at every connection going down the pipe to create more suction at the top. No y pipe at the top, just connect your suction pipe at top

[@FlourgoldWizards]

😎🤜🏻🤛🏻

[@shenanigans8apeach]

Rule of thumb is normally 3to1. Whatever hose you are using to do the dredging (I would recommend a shorter garden hose) which is roughly 1inch ID, I would do the pressure pipes 3 times wider ID, 3 or 4 inch. Also at the end of the dredging hose put a screw directly in the center of the hose to stop it from sucking larger rocks in.

[@FlourgoldWizards]

Excellent!

[@shenanigans8apeach]

@@FlourgoldWizards hope it works :)

[@Gentleman-Prospector]

You can increase you suction by reducing your pipe size at the Y . This is how we draft water at a natural source E.G. rivers and streams on the fire engines. Also you can use a small piece of 3” at the feed end (starting point) and it will catch more water and in turn create more flow pressure as it travels down your pipe. Remember the faster the the flow of water at the Venturi effect the stronger the suction.

[@FlourgoldWizards]

Excellent 😃

[@goldseekersadventures9380]

Jason, all you have to do is set up a long pipe through the creek to your your sluice box as you did in this video and at the very top of your pipe upstream connect your flex hose for suction. As the water goes down through the pipe, your best suction will be at the top of your pipe, and it will carry all your material to your sluice box. Just don’t take the section flex pipe out of the water very long because your section depends on the amount of water going down your pipe.

[@FlourgoldWizards]

I like this ✅

[@GSProspecting]

Always have a blast. Keep on having fun getting that Au and living the dream. Gold Squad Out 🤠

[@FlourgoldWizards]

Thanks! Will do!

[@craigentrekin5883]

I didn't see the mine boss get his snack today... Good to see ole Rigbone in the field...

[@FlourgoldWizards]

He really did well!!!

[@buffalokrisgoldprospecting]

The gravity dredge is a great idea. Definitely gonna need some tweaking though. That big ole sluice is awsome though. I just got a big classifier screen for mine. Im gonna try to get up next week to try it out. Thanks for posting an awsome video to svratch my gold itch.

[@FlourgoldWizards]

I’ll be watching for it !

[@rickcoona]

*Gold Fever* is one heck of an obsession, I have had a chronic case of GF for decades, but at least it get's you out into the fresh air and plugging away

[@FlourgoldWizards]

Exactly! The thrill of the hunt ✅✅✅✅🍻

[@rickcoona]

@@FlourgoldWizards yup I Got That Goold Fever! Nothing can help you but the yellow stuff...What, can stop that itching, ain't. Around the kitchen, Gold. Gold. hooked am I. Suzanna Go ahead and cry.... (Paint Your Wagon)

[@raymondutter2616]

Good morning Jason and the boys. I believe that the y pipe is in the wrong direction. With the suction the flow follows the bigger pipe. The y is working against the flow not the same direction. Some water is trying to follow the y pipe suction. I guess you would say backflow . Thank you and the boys...

[@FlourgoldWizards]

Thanks for the info! It’s our pleasure 😃🐕🐺🐕‍🦺

[@misskimo2]

Yeh. I said that. My buddy did that with 8” on a spring on a big hill. 400 yards neck down to 3/4 “ gave him enough pressure for his camp and had to open end another 3/4” because it was too much

[@FlourgoldWizards]

Too much ? Nice !

[@EquitySolutionRayRaz]

28 years ago For a project for school I rebuilt this old pump it was called the Mud Hog made by a company called Marlow built in 60’s , it basically had a piston that drove a rubber flange ( half wheel barrow tire ) which was called a bellow pump I believe it was , and it just had two flaps that worked like a check valve , but that thing would suck up 3/4 stones and literally sand or any sludge , I’ve always wondered why nobody converted one of those into a “dredge” That thing was perfect for pumping sands mixed with water etc , and it would push that sludge 100’ up hill .wish I still had it. It was a 5hp 4cycle I believe .

[@FlourgoldWizards]

We use grout pumps at work 3” that really move material too !

[@EquitySolutionRayRaz]

@@FlourgoldWizards totally

[@francismusso7644]

JJ, You would do best with a 2 or 3" back pack dredge. Then attach one of those vacuum cleaner flat suction attachments to the end of your suction hose to get down into the cracks in the bedrock. Thats where the bigger pieces of gold are... Old Prospector Frank 😊😊

[@FlourgoldWizards]

Thanks Frank 😃✅🍻

[@geraldbrunckhorst8291]

You have a tough situation with such a shallow amount of drop to create a suction dredge. I agree with the 4” pipe idea with a reducer. Have some great, heavy pans Jason!

[@FlourgoldWizards]

We may have it figured out !

[@hectororellana3397]

Your dogs are loving life out there, they can’t stop running around , they look very healthy.

[@FlourgoldWizards]

They really were !!

[@theshishow4942]

I've made a couple different types of dredges and from what I've found is you start out with like 6" pipe 3 to 4 feet long then down to a 4" 3 or 4 foot long then go down to your 2" that will create more pressure and faster flow past your Y and in turn should create a lot more suction. But you might have to put a crash box and your sluce to keep from blasting the material off your mats. Hope that helps.

[@FlourgoldWizards]

Much appreciated!

[@boulderboyv10]

I'd try keeping it as simple as possible. Make a straight siphon, no splitter. Run your rigid pipe to where you want it and couple on a smooth walled hose (smooth shouldn't catch as much debris) with a ball valve for stopping the flow

[@FlourgoldWizards]

Perfect ✅

[@GeorgiaDogScrapper]

Hey Jason, I would say that first attach hose straight to pipe,but probably use a 1" hose on 2" pipe. 1 1/2 " hose on a 3" pipe. Second would be to shorten your feeder pipe to no more than 30 ft. Should be able to draw a good suction. Hey brother stay safe and give the boys scratches for me. See you on the next video.

[@FlourgoldWizards]

Scratches all around 😃🐺🐕‍🦺🐕✅✅✅

[@stephenthompson3857]

I used to work in recirculating aquaculture systems and its been a great joy seeing the army of plumbers, engineers, pipefitters all come to the comments to offer tips. I'm off to fall down a gravity dredge rabbit hole and I'll look forward to watching your technique develop.

[@FlourgoldWizards]

I think i have my solution!!!!

[@mtnmandeluxe5429]

Chris Lilly conglomerate of the week!😂

[@FlourgoldWizards]

Lol 😃✅✅✅

[@cindymerritt7884]

The idea of the 4" pipe constricted to a 2" should help bunches. But if you can add a flare or cone to the 4" entrance, you should be able to force even more water than before, might have to figure out how to slow down the volume, it might be like a fire-hose! Probably won't need to lug 100ft of pipe either.

[@FlourgoldWizards]

Fire hose ??? Wow 😃✅

[@brandonjackson1434]

Well on a regular dredge hose the pressure supply comes in from the side ,and the suction is at the end maybe a 3" 20' up to a flare to build a little extra head pressure,down to a reducer at the 2" Y then a 2" up to hose and 2" down to box and maybe play with increasing pipe size from Y to box ,love great idea and I believe it will work

[@FlourgoldWizards]

Thank you Brandon !!

[@illernpiller]

You don't need a venturi, all you need is pipe, hose (or along enough hose if no pipe), then you need enough drop in the river without the drop it wont work well. The river doesn't really seem to have enough drop from what i've seen so far. You need a drop of about at least 3-4 feet i'd say, and also put the suction hose on the inlet.

[@FlourgoldWizards]

Exactly ✅

[@Abudamonkee]

Another excellent video Jason! Keep playing around with that dredge system and I know you'll get it figured out. Thanks for bringing us along on another adventure!

[@FlourgoldWizards]

Thanks, will do!

[@positivelyfishing1810]

I can’t help you with your gravity dredge system, but it sure is fun to watch! Now you need to train your dogs to help you haul all the gear down to the krik!!

[@FlourgoldWizards]

All they wanted to do was run around and play 🤣🐺🐕🐕‍🦺

[@user-ei7tb9ud9j]

Hey back from the north just made a trommel for my 4'-12" gold sluice out of one an a halve 20gal oil drums the process was great I wish I could show you pictures of er. Love the videos ✌️

[@FlourgoldWizards]

Nice work! Thanks!!

[@chambochambers8906]

Absolutely love what you bring to the gold panning community great vid JASON/FGW TEAM 👏👍

[@FlourgoldWizards]

Thanks 👍😃🐕🐺🐕‍🦺

[@rodgarcia3019]

Living vicariously through your good adventures. Keep it coming!!

[@FlourgoldWizards]

Thanks! Will do!

[@ainschuntayleuhn1147]

If you increase the flow of water going into the pipe, you can get the pipe to Suck additional water if the intake is completely submerged.

[@FlourgoldWizards]

Excellent!

[@user-dw4me1gb9s]

Use a 3” inlet pipe and then about 8-10’ down reduce it to a 2-1 1/2” and you’ll get what you’re looking for. That’s how I was taught by my grandpa

[@FlourgoldWizards]

That’s where im headed 👍🏻

[@tonytoloczko5243]

Luv Rigby! He should be carrying 2 beers for you in a bag on his back😂

[@FlourgoldWizards]

I’ll run it by him…🐺🍻✅

[@greenhornpanner]

4" to 3" to 2" to 1 1/2" at top. they all slide into each other for easy transport. I know that is how the old timers used to get good pressure out of a spring.

[@FlourgoldWizards]

They weren’t wrong!!!

[@robertcraig8510]

You can also try it with the Y connector wherever along the pipe where you want to suck. Once you get flow going in the pipes, completely block off the end upstream and that should put all suction at the end of the hose.

[@FlourgoldWizards]

👍🏻👍🏻👍🏻✅✅

[@chriszenker2468]

Well sometimes things look good on paper or in our heads but we don't know until we give it a shot we learn by trying and improving the project each change you make will help so take all advice with a grain of salt and try again keep thinking . Chris

[@FlourgoldWizards]

You’re 100% right!

[@user-ff2ol1hb8b]

If the mine boss says your nit working it hard enough, he is wrong! Good work!

[@FlourgoldWizards]

He’s firm but fair 🐺✅🤣

[@NevermoreProspecting]

Hey, if you want to increase the pressure, you need to have a need to change a Doctor from 2 inch to like 1 and 3/4 or 1 and a 1/2 inch type and that will help increase your pressure down at the sluice.Hope this helps thanks bye

[@FlourgoldWizards]

Thanks for the tips!

[@offgridbc6810]

The only way you can increase the pressure (psi) is by getting more head on your intake pipe, psi is psi and is only created by head height or by mechanical means. A lot of people confuse velocity with psi.

[@goldiswhereyoufindit]

Your creek sounds awesome. Super babbly brook

[@FlourgoldWizards]

Exceptionally babbly 😃

[@johnchristianson7682]

Definitely have to work on the siphon idea. Looks like it might make things easier. Maybe take some ideas from a sandblast siphon. Don't give up looks like it'll work. And then let the gold flow. Great video once again. Thanks

[@FlourgoldWizards]

Thanks for the tips!

[@offgridbc6810]

I enjoyed watching the trial and error method to see what works. I would suggest you do it a little different to get the full venturi effect. Instead of putting the wye pipe at the head of your intake I would put 3 sections of pipe(stick with the 2 inch), then downsize just before your wye to 1 inch, you would need some sort of adapter the fits inside the top end of the 2 inch wye and squeezes the water down to 1 inch to create some velocity and suction in the wye, then 1 section of 2 inch pipe down to your sluice. Run a 2 inch suction hose off of your wye to where you want to work. Make sure you have the proper hose and connections off the wye for your suction hose because tape isn't going to work. You need it to be airtight to get good suction at the end of your suction hose. Good luck. Looking forward to seeing you try again.

[@FlourgoldWizards]

I think we have a plan!

[@beaudryadventures6785]

A bigger opening upstream will increase the surface area (Square Inches) and by restricting the velocity it will increase the pressure PSI. Go with a big funnel and a piece of wood. Or a big reducer with a ball valve 💰

[@FlourgoldWizards]

Nice 🍻

[@beaudryadventures6785]

At least in my head it should work 😂 I don't prospect and never tried it.

[@gnomespace]

Go big to little. Make a dam to get water built up, (funnel to increase water access maybe like sluice flare if the mood strikes you) then downstream. (a barley pop from mother natures fridge) Downstream, put in the reducer to increase water pressure (your venturi), and then the Y joint for your sucker. If you have 2" of water coming in, then go down to 1", the cross-section area difference is about 4x, so 2x 1" would still get you 2x the water value of the 2". That should suck. I think. Another thing I see a lot of is that with those flares at top of the sluice (making the V everyone is told they want), the material all tends towards the center rather than being worked over the whole mat, so peeps only get about 3" of working mat in a 10" box. If it's all packin the cetner, that might be where your flakes are jumping ship.

[@FlourgoldWizards]

Definitely!

[@pank524]

Can't get over how nice it looks there the boys look like they had a lot of fun too

[@FlourgoldWizards]

It’s beautiful there !!!

[@williamvanderven4672]

I'm no plumber but look up Kris harbor natural building on your tube. You may need a stand pipe to draw in air. There is a formula to figure this out but.

[@FlourgoldWizards]

Thanks !

[@jp-lf2ny]

I think if you had the y and dredge line in the middle of the run, if you increased the diameter to 3" after and maintained a siphon, you would be in business. Might have to put a 90 on the end of the 3" or keep it submerged so it doesn't drain and get air in it. Need to keep a siphon on it.

[@FlourgoldWizards]

Another great idea !

[@teflone121]

Every restriction, or downsizing of the pipe would increase the velocity of the water, I suggest at least 2 reductions in size. Start big. You would then pull your "wye" or suction end off the bottom third section of pipe of faster water thats increased in velocity. There your venturi/vacuum effect will be highest. You'll have to be careful with the rocks you suck in, as the reductions in size will obviously cause some plugs unless you have a cage on the suction end, I suggest a couple deck screws through your sucking end to prevent this.

[@FlourgoldWizards]

Thank you for your help!!

[@watchvideos9104]

You need a vacuum reservoir a sealed 5 gallon pail with the 2” going in on the top with some sort of air bleeder to get the air out from the top and a short maybe a couple ft of 4” the bottom on the output just before the slucebox , the faster you can get the water to drop from the bucket the more suction you will have

[@wesleyrajek2057]

That was kinda what i was thinking too something along those lines. I dont know the legal end of this jason is it illegal too do this in wisconsin

[@FlourgoldWizards]

As long as no mechanical means are used…

[@marccocherell5339]

It's just an idea to possibly increase the suction on the gravity system i was thinking. Maybe something like a box built into the line with an impeller/turbine that would spin and increase the draw into the suction/nozzle end. Also, to keep it from plugging up, i was also thinking since it's mainly flour gold, putting a screen or hardware mesh on the nozzle to classify the material and keep the larger rocks and debris from jamming up your system.

[@FlourgoldWizards]

Wow ! Now we’re talkin science!! 😃✅

[@marccocherell5339]

I was basically thinking it would be the same principle as the old water wheels on the old lumber mills that they used to have along the river side back in the day.

[@robertmurphy8863]

Looks like another fun adventure with the boys! You'll get the pipe dredge figured out. Lotsa good advice from the fgw fans. Cobbles🍺🍻

[@FlourgoldWizards]

Thank you! Cobbles 👍🏻😃🍻

[@hondaben78]

Vacuum eductor for fluid will highly increase your vacuum flow. Check out one for a fertilizer application, and increase its size, and all should be good 👍

[@FlourgoldWizards]

Thanks for the tip!

[@bopemuworty3163]

yesss. venturi effect just like a calibrator

[@FlourgoldWizards]

Yes indeed!

[@24staples]

I believe that you need to get the black dredge pipe into the flow of the white pipe. That’s where the restriction happens creating a cavitation in the black dredge pipe

[@FlourgoldWizards]

Now we’re talking 🍻

[@24staples]

kzbin.info/www/bejne/r5PRn4OOgbiDhNUsi=PmYMPlrZyHKXiVBr Took me a bit to find the right video but use his air intake as the dredge suction

[@dustinhebert330]

Hey the wye is a good idea, but turn the wye around so the water can't blow out the wye, it will just blow past and create the suction your looking for I believe:)

[@FlourgoldWizards]

It was turned around in the water but still didn’t have the pressure needed ✅

[@goldiswhereyoufindit]

Better than the guy in episode 1 of America's Backyard Gold lolol

[@FlourgoldWizards]

🤣🤣✌️

[@washingrocks]

Connect the hose to the end of the pipe and you got great suction for dreadging

[@FlourgoldWizards]

Right on ✅

[@stevenpackman4570]

Wahoo! iiiiiittttttttssssssss Wizard time! Looking forward to some quality entertainment, with a splash of gold! 😂 Thanks team Wizard, Cobbles!

[@FlourgoldWizards]

More to come!😃🍻🐺

[@danieldeanmasterfinisher4715]

Yes Jason 4” down to 2” plus the Y the Y part should face upstream …. I think that’s the ticket 👍👍👍

[@FlourgoldWizards]

Nice 🍻✌️

[@nunyabusiness9404]

6" pipe reduce to 4", 3", then 2". The more slope the better. Hydraulics my friend

[@FlourgoldWizards]

Right on ✅✅✅

[@theodorebolan6724]

The boys looked like they were having fun.

[@FlourgoldWizards]

They sure did !! 😃🐕‍🦺🐕🐺

[@tonytoloczko5243]

I like your waders. Right equipment!

[@FlourgoldWizards]

Me too!

[@larry785]

A friend of mine is going to the Mojave desert this weekend to try drywashing for the first time.

[@FlourgoldWizards]

Sounds great!

[@glenspryszak6005]

Get rid of the black suction hose. Get a 3/4 to 1 inch quality flexible garden hose instead. Put a nail through the end of the hose to prevent stones from entering and clogging up the hose.

[@FlourgoldWizards]

Noted 😃✅✅✅✅

[@seanb3516]

The Biggest Challenge with the Water Pipe can be seen when you lift the Discharge End out of the Water and show the Flow. The Flow is too Smooth. The Problem is that you have Laminar (Smooth and Calm) Flow in the pIpe and this causes a lot of Resistance to the flow. If you look at Appliance Discharge Hoses you will see that they are almost always corrugated. This produces Non-Laminar Flow (Bubbly and Fast). You need to change the Flow in the Pipe to Non-Laminar Flow in order to Really Increase the Water Velocity. That's how the Stream Works. The Stream Bed has Obstructions, the Pipe does not. So you are actually slowing the Stream Water down in the Pipe. [This is CounterIntuitive] The only Suction you are feeling is due to the Water Height Drop (Head Height) and not due to a Flow Differentiation or Venturi Effect.

[@FlourgoldWizards]

Would this corrugated hose then trap the material?

[@timlowe3081]

Jason, I just love your show, thx so much for being on you tube

[@FlourgoldWizards]

We appreciate that ! 🐕‍🦺🐕🐺😃

[@user-ls3lk9oo5i]

That's a great idea. Màybe try to fit a screen on the suction pipe to help from clogging.

[@FlourgoldWizards]

✅✅✅✅✅😃

[@richardbeee]

I don't know. I think I'd find some private property that the creek went through and talk to the owners. Maybe give them a piece of the action. Then I'd get me a 4-6" real dredge and go to town. Like in the old days when they actually leased the land to mine. Or extend my pipe further up. The higher you go up the creek, the more you increase the head pressure. Maybe some rolled up 2 inch hose about 100 feet long.😊

[@FlourgoldWizards]

I wish !! Its all county land 😃

[@MaryBrownForFreedom]

Many states ban motorized dredging unless you buy a commercial permit, MN goes even further, only hand panning allowed! I classify material and bring it home to sluice it.

[@danmartin8892]

I'm no expert, but look at your sluice. It has the flair at the top to channel more water over the riffles. Instead of a reducer at the top of your pipe I would try using a 4 inch to 2 inch coupler to channel more water into the pipe to increase flow and pressure in the lower end.

[@FlourgoldWizards]

Excellent ✅

[@ainschuntayleuhn1147]

You can also use a Monitor System. Your first pipe of 4 to 6 inches, then keep reducing the pipe size.

[@FlourgoldWizards]

Nice !

[@brianbell1608]

That chunk you found is called hard pack! Nature's concrete!

[@MaryBrownForFreedom]

Called hard pan here... dig down 3' in my yard and hit a 1-2' deep layer of it that even a mini(couldn't go larger, was digging a 5'x5' hole) backhoe couldn't get thru. Had to use a demolition hammer with a spade bit to break it up... hit it with a fence post auger and it will knock you off your feet if you aren't ready for it...I have never tested it for gold... hmmm....

[@FlourgoldWizards]

Nice !

[@deplorable01]

The 4” black corrugated hose would work great, neck it down to your 2 inch flexible mining hose for working, put a 4x2 wye at top ……keep the 4” wye underwater -hose doesn’t have to be perfectly flat, the greatest elevation change is the key (not the length)….squeeze off flow going into 4x2 wye to get greater suction from your 2” mining line….the 4” corrugated will travel much lighter than what I just witnessed

[@FlourgoldWizards]

Interesting! Thank you ✅👍🏻

[@user-mj9lz7ze1m]

It will also create a significant amount of drag, slowing the water down, reducing the suction. At the same time, the corregation would act like a sluice, catching the gold in the middle of the pipe instead of transporting it to the sluice. Imagine trying to clean gold dust out of a drip ripple twenty feet down a 4 inch pipe. Couldn't be done.

[@deplorable01]

@@user-mj9lz7ze1m your correct, the flexible Home Depot stuff is corrugated on inside also, but the rigid double wall like for drain tile is not, it is smooth inside and very light, probably less than half the weight of schedule 40 or less even….I was mainly thinking about the weight of lugging it…the fluid dynamics of what I described should provide a considerable upgrade for suction dredging

[@deplorable01]

Forget about the smooth corrugated, I just checked the price…. 4” sewer and drain is still very light and much cheaper and with the bell ends should be easy to work with…….i almost forgot, easier said than done

[@cedarplankprospector]

Funny thought for all today. Here we are cheering the FGW Team, but, the best thing we can hope for is that his contraption really, really sucks. Happy St. Paddy's Day.

[@FlourgoldWizards]

🤣🤣🤣✅🍻🍻🍻

[@jeffreyjohnson7213]

I think you don't need a Y. Once the white pipe is full of water, connect the flex pipe ( also full of water ) then raise the connection point up on a rock. I also think you don't need all that white pipe, just twice the length of the flex pipe. You can experiment with the height of the connection. Also make sure the connection is as airtight as possible.

[@FlourgoldWizards]

Right on !

[@jeffreyjohnson7213]

I think the higher you raise the connection, the more it will suck lol. As long as the white pipe is longer than than the flex

[@johnskwor9341]

Awesome video. I’m watching the video, via Florida. It’s a lot warmer here. I wish I knew more about your dredge system to give you advice. I’m sure someone in the comments will help ya. It’s always fun watching you do new things. Thanks for sharing and I know you will get that system working. Cobbles to ya 🍻

[@FlourgoldWizards]

Warm ???? 😃

[@johnskwor9341]

82 today. We been in the mid to upper 80’s all week. Kind of warm for me but not complaining.

[@pirateprospecting707]

Wow you asked and they answered!!!! Youll get it rolling!! FGWTEAM 🐕🐕🐕🐕🍺🍺🍻

[@FlourgoldWizards]

Next up: my smelly water heater…🤣🤣😃🍻🍻🍻👍🏻✅

[@williambrink1080]

Forget the Y. Put your suction hose at the upstream end and use the siphon effect. I have seen videos of guys using a 4 inch gravity dredge. Love your videos. Give your dogs a scratch behind the ears for me.

[@FlourgoldWizards]

That’s where im headed i think ✅

[@timbos8392]

I just did some research and now know exactly what you need to do. You need to install a reducing coupling at the end of the 2" pipe where you want your suction tube to be. So install a 2" X 1 1/4" reducing coupling and then a 1 1/4" nipple between that coupling and a 1 1/4" Tee or Y so that the suction line is coming out the top. Put another 1 1/4" nipple in the end and then a 1 1/4" X 2" reducing coupling between your suction fitting and the downstream pipe. I believe that using reducing couplings will be far more effective than simply using bushings because the couplings will have less disruptive impact on the free flow of the water. If you don't generate enough suction, you will probably need to downsize the diameter of your dredge suction line to a thin wall clear 1" plastic tubing or something similar.

[@timbos8392]

Btw, considering fluid dynamics, as well as the importance of the speed of the water in the 1 1'4" Y or Tee in generating suction, I would keep the 1 1/4" nipples as short as possible at each end of your suction fitting. The longer they are, I suspect the speed of the water will slow down from friction and turbulence- so make those nipples 3" long. The collar on each end of the suction fitting will be 1 1/4" deep, as well as on the 1 1/4" end of the reducing couplings.

[@FlourgoldWizards]

Screenshot 😃✅

[@davidvail3838]

Have you thought about adding some type of funnel to the upstream end of the tubes to force some more water flow into the tubesso you get a little more consistent flow????? Dave Vail Fredericksburg, VA.

[@FlourgoldWizards]

I have now ! 🤣✅

[@lamprou]

The velocity of the water in the pipe is where the low pressure will be generated for suction. Laying a pipe down the center of the creek does very little. The water in the pipe is basically flowing at the same rate as the stream. You need the water in the pipe to go faster. The only way I can see you can do that is to have more head pressure. A much larger section of pipe at the top, like a 3ft section that is about 10in in diameter or larger. Or you need to create steep drop at the end to generate a higher rate of flow. You can also try moving your black suction pipe into the Y pipe about 10 inches. this will place the suction pipe down into the main pipe and it will "pull" water from the black pipe. A more proper venturi setup than just the Y. A screen on your suction pipe will help it all run smoothly. Or maybe reduce the Y connector to a small 1inch connector and create a real spot of constriction that will make the velocity of the water at the venturi speed up and create more suction.

[@FlourgoldWizards]

You are on the right path in my mind ✅

[@MADDLADO1]

My advice is; Northerns are in prespawn right now, lol Cobbles !!

[@FlourgoldWizards]

Yum 🍻

[@johnizitchiforalongtime]

Good luck with this set-up. Hope you get a bunch of what your looking for.

[@FlourgoldWizards]

I hope so too✌️😃

[@markbowling4239]

Need to be sucking through the hose directly with a mesh to keep the larger rocks out. Just need to prime pipe!

[@FlourgoldWizards]

I agree ✅

[@haroldboyd5240]

? Bigger tee in middle connected to a above the water box and hopper with a screen to block bigger stones and manually dump the material down big hole to exit faster over a longer 4 ft mat or something like that lol.

[@FlourgoldWizards]

Maybe!! ✌️😃

[@Ltn.Immelmann]

The idea is good with a bit of adjustment. But I wouldn't be able to fit that much equipment in my car. And then hopefully not run that far ⚒👍🤠

[@FlourgoldWizards]

Lol… it was a double trip both ways 🥵🤣🤣🍻

[@user-zh3wy1jb1e]

Maybe put a flare on the front of the suction hose to force more watering in

[@FlourgoldWizards]

😃✅✅

[@MaryBrownForFreedom]

Wait for the end of this week... my part of MN is forecast for 11 inches of snow! Yeah that white crap! Maybe go to a 1 1/2 inch suction hose at the top of the run, use maybe 5' of input pipe above it. To bad you can't stash the pipe there on the side of the creek.

[@FlourgoldWizards]

If i get it working properly it will be…..🤣🤣✅

[@josephknowlton7246]

Liked, shared and commented. I got nothing on that magic dredge witchcraft. But on the dream mat . I think u should have a tiny mat of larger (not big) but larger than micro just b4 the end. 24:30 🍻🗽🤴🏻

[@FlourgoldWizards]

I agree ✅ Thank you!

[@user-zh3wy1jb1e]

And maybe go from the size pipe you're using to a larger pipe by the sleuth to create more suction

[@FlourgoldWizards]

Sounds reasonable 🍻

[@Squale-65]

Good effort, you will get it ✌🏼ever try the water flowing from pipes to a hose into a actual 2” dredge nozzle and out to hose or pipe to the sluice 🤔 might get better suction with a better nozzle. don’t know if this make sense to you but just a thought cobbles🍻✌🏼

[@FlourgoldWizards]

Thanks for the tip!

[@flyrog07]

What about putting the intake opening under a classifier and shoveling into that. It would avoid clogs. But that may defeat what you are trying to accomplish.

[@FlourgoldWizards]

I actually thought of that too !