Start the Ram Pump for 2023

The Hydraulic Ram Pump was turned off and drained for the winter. Now that spring is here its time to start it up for the 2023 season of ram pump testing. I walk through each step of the startup beginning with the screen intake. This needs to be dug out to allow water to pass and cleaned from all the silt. Next I purge the air out of the supply line by picking it up and setting it down quickly. I drain the silt out of the filter bucket and get clean water filling that back up. I get the drive pipe full of water and start the ram pump cycling. Lastly I walk the delivery pipe to make sure that the water is getting to the top of the hill. The large storage tank is working well and ready to hold over 300 gallons of water.
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[@mosesgoiho6240]

Hi Seth no matter the many times you post these videos,(rampump, micro hydro,solar )we will continue to watch them. Some of us are green energy addicts!

[@rlrnghaka561]

This is the first time I see the video on this device, I absolutely love it.

[@LandtoHouse]

Thank you. The channel has over 200 videos dedicated to the ram pump.

[@reeceevmez4106]

You can close the delivery valve so the pressure builds then crack the delivery valve slightly and you will prime the delivery pipe without having to manually do it, once primed, open the delivery valve fully

[@LandtoHouse]

That is an option. It can be very tricky to find the sweet spot that allows water to pass at a slow enough rate.

[@wobblysauce]

And a clear pressure pipe, build up a head of pressure and just crack it a bit and watch it drop, you know the level it likes to sit at when open fully, so about 1/2 that distance, works on ones I have used.

[@rodneyscholtz8849]

Where and how do I order your system?

[@LandtoHouse]

@Rodney Scholtz The ram pump is available on Amazon, ebay, and the Land To House website.

[@atomizer2665]

@@LandtoHouse Create a bypass across the delivery shutoff valve using 1/4" reverse osmosis fittings and a 1/4" shutoff valve for fine control over the flow and pressure.

[@darthgbc363]

9:09 If you just slightly open the delivery pipe valve, the pressure will be maintained. Which means less monkeying around with pushing with a stick.

[@mrxmry3264]

Yep, that's what I was gonna say. To start the pump, close the delivery valve, hit the waste valve repeatedly until the pump keeps running on its own, then SLOWLY open the delivery valve.

[@linggiman]

Thank you for sharing this with clear & concise explanation..Appreciate very much 😊

[@losmetalsindustrialrecords5917]

Well done sir,simply brilliant

[@johnp.turner2000]

Ingenious!!! Thanks for sharing

[@ridenacott]

Great info

[@craige3908]

Finally got mine started and running after 3 seasons of messing around! Your videos have always been very informative and helpful. Thank you!! ❤

[@LandtoHouse]

nice to hear that you have the pump up and running!

[@TradisionalChannel_Indonesia]

Good job Friend....careful planning

[@MikkoRantalainen]

I think you should put a car tire valve on the top of the pressure tank. That would allow using a basic bicycle pump to fill in air into the pressure tank as needed. That should allow using much smaller pressure tank, because you can match the pressure in the tank with the pipeworks height. You can probably also help starting the pump by cracking the output valve open ever so slightly. That will allow some water to fill the output pipe and keep enough backpressure to allow the pump to stay alive without enough water in the output pipe. The the see-through pressure tank you know that the output valve opening is good when the water level stays about the same.

[@TheDraggerPlay]

the first point is totally unnecessary because every time you halve the remaining volume of air in the tank with the water you double the pressure. so you go from (for example) 1L air volume at 1atm to 1/2L and 2atm, then 1/4L at 4atm, and so on. In theory even a tennis ball-sized tank would allow you to pump up hundreds of meters. But that will probably cause other problems, like diminishing the water throughput close to 0, so the savings of a few bucks for a smaller tank will be heavily outweighed

[@patrickwears229]

Love that, love you and I’m going back out. I’m trying to use the setup to keep the duck pond from freezing. I needed that back pressure tip during priming. Thanks!!!!

[@benjaminallen2370]

Cool setup

[@ADVENSOY]

Thanks for sharing mate

[@truthserum8326]

I started mine today for the first time. 1 1/4" pump fed with 3 sections of 1 1/2" and 2 1/4". I only have 5' of fall to the pump. I used 1/2" PEX as my output line. It has lifted water to 72' above the creek! Mine only has about 1/8 " bead of steady water coming from my pump but my guess is given enough time it will fill the IBC tote it's feeding currently. The "7' of lift for every 1' of fall to your pump" theory has been shattered! (32psig on the output gauge)

[@linomontalban9174]

Thank you sir for your video it so good ❤

[@450rhino1]

Hello. Glad to see you back into Summer projects. Thinking about changing my 3/4" ram pump into a 1" pump. Pumping water 1/4 mile to my camp. Gotta love it.

[@LandtoHouse]

Yes! Winter time projects are fun but we all like the summer water projects! The volume difference between the two pumps is over 300 gallons a day.

[@behumbledlife8929]

Thank you so much. I am working on one now.

[@LandtoHouse]

Very good! They can be lots of fun to work with.

[@olenduschannel7714]

Thanks for sharing ram pump👍

[@LandtoHouse]

Thanks for watching!

[@richardami180]

That was helpful

[@h7opolo]

very nice

[@natureandguitars8983]

Awesome video. I’m totally new to this and this video covered a lot.

[@LandtoHouse]

Happy to help. There are over 130 ram pump videos on the channel.

[@andrewdavis6917]

Wow, how nice to see. I have thought about that as a project...

[@LandtoHouse]

Thank you for watching.This has been a project that I really enjoyed over the past couple of years.

[@DaleDoesItAll]

you the man Seth!

[@LandtoHouse]

Thank you. Its nice to be back making ram pump videos.

[@schrabad]

Awesome hydraulics !!

[@LandtoHouse]

Thank you.

[@MultiKlompen]

RAM PUMP SEASON starts NOW "This is a rampump ..." How much have i saw this? millions times ... i love it

[@LandtoHouse]

Haha Yes I say the same thing in all the ram pump videos. You never know when someone will be watching for the first time.

[@stevdor6146]

​@@LandtoHouse its my first time ever seeing a Ram pump, letting you know the YT algorithm put this video on my front page (because YT knows me so well)

[@LandtoHouse]

@@stevdor6146 That's very funny. Sometimes those suggested videos are quite off. It's probably because this video has gotten a lot of traction quickly. KZbin is pushing it to new people.

[@Landtreairfarm]

Great video!

[@LandtoHouse]

Thank you!

[@Jm4steam]

Very interesting. Nice set up and good information. Have you ever used a Bunyip type pump as well?

[@MultiKlompen]

12:33 Seth, when the pipe is so far into the ibc-container, and you have a leak right at your rampump f.e., your hole ibc will get sucked empty. So you better put the pipe as less as possible INTO the ibc. (i hope you understand what i mean)

[@LandtoHouse]

That is a good point. I need to cut that length and insert a 90 barb fitting on the pipe to angle it into the ibc.

[@OBD01]

Wishing you a bountiful growing season! Thanks Seth

[@LandtoHouse]

Thank you. Mostly some flowers and melons that the kids picked out.

[@johngodwin7902]

O snap! Ram pump time. :-)

[@LandtoHouse]

Yes indeed! Time to get back to my list of ram pump tests.

[@olivierkahilu4468]

very good system bat i want have for the french

[@doylemarkham1010]

Hello Seth, I am still amazed at your ram system. I need to get water from my pond & go uphill so I can water cows.

[@bdevine7509]

Great question.. I’d also like to know if this is effective with standing pond water

[@therainmaker3847]

The delivery valve will do the remaining functions without manually actuating the check valve on waste discharge. The contained pressure will be discharged to the delivery valve

[@RyanLebeck-td5ft]

Seth: add a Trompe to your stand pipe that empties the excess and you would have a natural supply of compressed air to fill a tank and run tools or what have you.

[@MrNhenwood]

It would be interesting to see a change to the filter bucket. Replace the overflow elbow with a T that goes down to the bottom of the bucket. In theory it would help clean out some of the silt.

[@sean-e-boy]

A sediment trap. Not sure it would work in this case.

[@MarkWarren-com]

Flipping the intake holes so they face sideways or down at the top end of the water intake line would reduce sediment intake.

[@janbieling3595]

1:03 I have a 1 in pump in my creek 😂

[@workbenchz]

I always enjoy the cleanup and startup of the ram pump each year. One of your comments suggest a question: if the delivery height is as much as 7x the source head height, what is the needed minimum backpressure (delivery head height) for the pump to keep cycling on its own? From some of your other videos it looks to be 3x or 4x the source head height. That might make an interesting video to try several source heights to see what each needs, and a good metric for you for calculating the minimum delivery height for each install.

[@TheMagaiver40]

gostei belo trabalho, é bem diferente das "bomba carneiro" que utilizamos aqui no brasil.

[@toroddlnning6806]

this is how the can redirect river from europe to sudi arbia.

[@unclecharlie9022]

I need to go back to my creek and take some measurements to see if this will work for me.

[@davidgroff3355]

Hey Seth just got a 3/4 pump from you, i hope it can pump 900 ft distance with a 90 ft lift, got a nice spring running to pump with bout a 30 ft head drop, thanks for great videos, gotta get some kind of constant water into my newly dug half acre pond other then just tain water

[@user-yz4bp3nd1r]

Can you pleas add to your comment the materials or fitting used in your project .very interesting

[@mauriceonyango8024]

Help me reach out to Seth. I need this ram pump kit so urgent.

[@alexp.6406]

Brilliant, is there a method of setting up back pressure on the one-way check valves?

[@user-cx3ro5bl8s]

Bikin kincir mesin menciptakan listtrik

[@lugnutzz75]

awesome video. these pumps intrigue me and i understand their purpose and function. however can you "reclaim" the waste water from the open check valve? i want to catch water off my house roof in a tote/barrel and then use a ram pump to transfer the water to another tote/barrel across the yard. i dont want to make a big mud hole from the waste water.

[@dwarfzerker8456]

Wonderin if overflow be good to go back down to river near ram pump on the minin trough

[@coreycreehan8197]

Curious to know if applying a vacuum at the top of the hill would help prime faster/easier?

[@AkhileshAkhilesh-vb2gv]

Ram Pump ----> Jai Shri Ram 🙏🙏🙏

[@ayatti26]

Have you ever checked your silt bucket for gold dust?

[@orrfamily641]

Seth, I'm planning on ordering your 1 1/4" ram, in looking on both sites yours and Amazon's they both show the solid white PVC on the pressure part, I really liked the one you were using in this video with the Clear tube and the drain value at the pump. Could one get one exactly like this one in this video. Thanks Allan

[@kelmanadventures574]

Awesome videos and great info! But I'm curious why you charge so much per pump? They can be made for a little over a 6th of the price I see yours on Amazon. Not trying to be rude, maybe shipping costs are crazy or something for you but I'm just wondering.

[@alexandern8hgeg5e9]

8:55 Hm,... if you open the delivery pipe valve just a bit and keep adjusting it to keep the pump going then you only need to do slight adjustments and you don't need to push the waste valve that often. I think if you open it a very small amount it will self regulate to the nearly the maximum pressure and you can walk away and come back later when the pipe is filled up. The best setting I think would be the valve as open as possible without stopping the operation.

[@jmr]

I'd love to hear from people about their record for highest elevation pumped. At some point I assume the pressure will be too much. Then you'd have to beef up the system.

[@trinkladd]

I’ve had it push 110 feet above pump head

[@j4891]

There are some 6+ inch ones being used in Thailand/Philippines that pump up to thousands of feet.

[@jmr]

@@j4891 😳 That is awesome!

[@trialsdrifthunt]

Look up the “bunyip pump” it has a drive line similar to this 1” ram pump, but a large diaphragm made from a small tire and a piston/cylinder assembly. The guy who makes videos about it says it will pump 1200 feet of head, obviously low flow.

[@caingomez5107]

So I have a natural spring water that I want to go up on top of where it’s coming out of it’s about a 60ft cliff. can i install this immediately or close to the water source or does it need a certain distance from where the water comes from?

[@andrefixa]

Can you please make a list of what parts did you use for this pump? Greetings from Italy!

[@natesquestyouknowthatsrigh8269]

What’s inside the cylinder?

[@mrxmry3264]

12:25 i understand why you painted that tank black but the problem with black is that it gets hot when the sun shines on it. That's why I think it would be a good idea to paint it first black (to keep light out of the tank) and then white (to keep the tank cool).

[@LandtoHouse]

Luckily in the summertime, we have so many trees around that the tank rarely sees sunlight. The people that have lots of sun That is a good idea.

[@turtlemann14]

sounds like it needs a pressure regulator that keep system at minimum pressure to keep it going while starting.

[@davidgroff3355]

Hi Seth your Ram pump still working here 😊, long question, I have a good spring flowing downhill, without my Rampump what water pressure would I need to get it uphill bout a 90ft elevation difference, is this actually possible, thanks for all your videos

[@misterdubity3073]

If, @9:08, you just slightly opened the valve to the delivery pipe, would that still give enough back pressure to keep the RAM pump going? (Ah, never mind; just read the other comments and your response). Thanks

[@sproctor1958]

Fascinating. Engrossing, even. Then, at about 12:00 a 6 second advert for some sort of cross dressing program came on and totally screwed it up.

[@thegiant573]

I need to lift water about 15ft. To a storage tank that I will then drop about 3 feet to a garden, would this work out for me? It is a much larger creek than you had so gallons per minute is no problem. How to you secure the pump so it doesn't wash away in a flood?

[@gabrielberlin3023]

Can you use this for a conventional well?

[@xzavirelaxation2029]

What if you do not have a stream to flow down into the ramp pump? Can you build a siphon to pull water up and then down into the ramp pump?

[@lincolnrock9158]

So it can be used as a free energy device u can have little turbines in the hose flowing down hill. Right?????

[@TheAwesomeHomestead]

Would a home expansion tank work betrer?

[@rodney2527]

What's the maximum lift? We have a creek at the bottom of 50-60' canyon. I'd love to pump the water up.

[@theunisdeklerk1232]

Sir please I would like to know how you assembled it .

[@ClemensCreekFarm]

I can’t even get our 1/2 pump going. I don’t think I have enough head pressure. Not sure though, sometimes it’ll work for a few minutes then stops. I have to also keep the waste valve turned sideways some. Sent an email and no response. The delivery pipe is is probably 10 ft tall and the drive pipe drop is about 3.5 ft. I can lower the delivery pipe no problem. I’m thinking my drive pipe pressure isn’t enough. But not sure.

[@eddietee3302]

I cannot get the water to go though the pipe. Almost 90ft of 2” converted to 1” to 3/4” fully submerged and its not connected to the ram bc I cannot get water to come out the hose alone. Any advice ?

[@namgaihai6920]

What is the size required to pull up the water for high of 10 metres

[@paperchaser9565]

Is there anyway you can start a Ram pump for the cog hill family farm for there pond?

[@buddyitzy9899]

Thx for video. 7ft pumped height for every 1ft drop. Interesting. What percentage is pumped up/what percentage goes back in creek?

[@LandtoHouse]

Typically 90% of the water goes back to the creek. 10% is pumped.

[@sjamesje]

You can also just hold down the valve without pressing and releasing. It goes faster

[@johnathon007]

That won't build enough back pressure alone in some setups.

[@ANELECTRICAL]

Thank you very much for your videos, I also made a ram pump with a 3/8 check valve. Since we don't have a flowing waterfall, like in some of your videos, I installed a small water barrel 5 feet high.. But the problem is with this unit. It works and closes after the first press, after that no matter how many times the unit is pressed, it only works when it is pressed, it continues to open and close automatically, I put a half inch hose near the barrel to the ram pump, the host is twenty feet long. pls help me...thanks

[@Keith_Mikell]

The check valve is key. It lets you fill faster and is wayyyyyy more efficient.

[@jimmyabo-abo4060]

Why you need to put the rubber in tank ?

[@godsflesh]

Hello I'm interested it purchasing one of your ram pumps but have some questions. If I get the max size pump can I adjust the water out flow? My problem is my quarter acre pond is low but does hold water well. I want to fill up quickly when needed then the rest of the time just trickle water for a constant flow. Sorry for the dumb questions I'm new to this and was gonna purchase a sump pump for my problems but this is such a genius idea

[@LandtoHouse]

Hello. The ram pump is designed to run 24/7 as long as the source is flowing. The 1-1/4" pump can supply up to 1400 gallons per day. The delivery pipe up hill can be closed but the pump in the creek continues to cycle.

[@godsflesh]

I know the head pressure needs a 2ft rise. But does the line for head pressure need to be a certain length?

[@LandtoHouse]

@godsflesh The drive pipe feeding the pump has a minimum of 2.5 feet of head pressure. The delivery up hill needs to have enough lift to maintain back pressure. In this case around 10 feet up.

[@godsflesh]

@LandtoHouse sorry im a pain in the ass but my trouble is rise. My creek flows slow. If I build a 3ft dam for water pressure. Do you think that would work. And again thanks for your quick response!

[@LandtoHouse]

@godsflesh it's actually just as effective to take the drive pipe up creek further to gain that extra head pressure. 3 feet adds another 20 feet of lift.

[@keithwilcox7035]

Working on a complex pump consisting of a ram pump troumpe pump and a gravity pump would love assistance with this headache lol

[@johnathon007]

Please video this if you move forward. That sounds very interesting.

[@JouniKyyronen-nv1ep]

what if the pressure pipe is like hearth, balloon in round, flat bike tube do nothing much

[@vaalrus]

Two things that I’ve always wondered about the efficiency of ram pumps…. well, I guess it’s two things in relationship… What’s the pump-to-bypassed water ratio, and how does it change depending one how high above the source you’re pumping to?

[@misterdubity3073]

If bypassed water is the same as waste water, my guess is that a first approximation would be a similar ratio of volume wasted divided by water pumped is about the same as height of height gain divided by height from inflow to pump. And then a little more waste than that ratio would predict. So if a 5 foot drop from inflow to pump, and it goes 35 feet above the pump, then maybe you waste 7.5 or 8 gallons for every gallon you pump. Just guessing; not from experience.

[@SwellKitchen]

Hey Seth, great video! I'm curious, could I use your ram pump to pump water back up to a storage tank to make a closed loop micro hydro system? I have a 1000 litre storage tank that is at the halfway point to my run of pipe (100' or so) where it then falls deadfall through the pipe to my microhydro turbine about 40' below (creates great PSI this way because I have such a short run. I'm thinking if I could use a ram pump to use water to pump the water back up to the 1000 litre storage tank, that would get me through times when there are smaller amounts of rain. I live by the sea as well, and I could easily pump sea water up to the storage tank as well. Thoughts on how to use your ram pump to do this?

[@LandtoHouse]

The ram pump is a low flow and low pressure pump. Even the big 1-1/4" pump supplies around 1.5gpm max. Not that effective for making hydro power. It would take a long time to fill that tank

[@AdithaJayasuriya]

Closed loop system is not happening because it's effectively trying to get free energy out without any energy input. If you can pump sea water up from the pressure of ocean waves it might be possible. But you'll need a much larger pump to achieve that.

[@rdance3]

The pressure isn't at the top. It's everywhere in the container. Pascal's law states: a pressure exerted on an enclosed fluid remains equal and undiminished throughout the fluid and the walls of it's container. If anything, the pressure is more at the bottom due to the static pressure.

[@kennethmartin6795]

Hey Seth so question for you. Can you make a ram pump where the pressure valve doesn't waste water on the ground like if I was going from a 2,500 gallon water tank to the inside of a cabin. Could it be done??

[@jepmd88gmail]

The waste water can do anything, but it has to flow free from the valve. Put a reclaim tank below it or whatever, but the mass of the wastewater is what does the work of lifting

[@DefinitelyNotSpam]

This might be a dumb question, but if you close the delivery pipe, get the pump working, and then slowly open the delivery pump, will it keep cycling until fully pressurized?

[@johnathon007]

It probably would.

[@averteddisasterbarely2339]

I could really use a pump like this on my off grid home ! I have a year round creek and would love to take advantage of it ! The problem is the cost of your's is to much for my limited income ! I know you sell them to make money but was wondering if you could for diy people like me list the parts to build one ! I understand if you won't, have a good day

[@LandtoHouse]

I understand. I actually have a free pdf on the website with parts list.

[@averteddisasterbarely2339]

@@LandtoHouse thanks for your quick response ! I'll check it out right away ! This will make such a big improvement!!

[@OBRfarm]

Simple things complicated setup. I need someone to help lol.

[@maryrosepulma6813]

The filter should be after the ramp pump.

[@johnburns4017]

What is a waste valve? Sounds like something on sewage.

[@dangappa]

So theoretically, with a number of these in operation, could you produce enough water volume and pressure to run your hydro power generator?

[@LandtoHouse]

This 1" ram pump has an output of 1/2 gpm at a height of 25 feet. The hydro has a head pressure of 150 feet. The ram pump would need an input head pressure of 22 feet to get water to this point. It would not work very well. The hydro pulls 33gpm while a single ram pump only supplies 1/4 gpm at best at this height.

[@dediesmarts]

What happens if you combine it with hydroelectric. Water from waste valve is connected into input pipe of hydroelectric

[@LandtoHouse]

You could use the water ro feed a hydro system. It would not make much power though.

[@user-rx5cw9sl6m]

ใส่กัย้อนไว้ใต้ถังกักแรงดัน ท่อส่งน้ำออกใต้ถังแรงดันวันเวย์อย่อด้านล่างของท่อส่ง จะใด้ผลลัพที่ดีกว่า❤

[@kabilan1t]

You can use Tesla Valve to decrease back pressure …

[@henriks5008]

laksmie

[@yuvarajyuvarajyuvaraj9203]

The of ram pump waste water can recycle it is possible

[@LandtoHouse]

No there is a pressure difference between the drive pipe and waste valve. The water cannot return to the source.

[@GetFitEatRight]

I feel that retarding the delivery line and opening it slowly while it builds pressure would help in priming the pump with less effort.

[@LandtoHouse]

That is certainly an option. I have found that it can be quite touchy to find the sweet spot that allows the pump to continue to push water up hill while maintaining enough back pressure.

[@tmo26]

What is that stuff inside the clear pressure cylinder @01:37 and what is it for?

[@misterdubity3073]

Probably a pool noodle, thought to help keep the pressure tank working better. From prior videos I think it helps for a while until the material deforms permanently.

[@jllaine]

It is a bicycle tire innertube, it had air in it to absorb the shock each time the pump cycled water to the delivery side. After a few years Seth figured out it wasn't effective.

[@user-vx4bd8fh4c]

Это носки. Он их стирает там чистой энергией.😂

[@MultiKlompen]

1:25 No! You wanted to build a waterwheel for that flume :(

[@LandtoHouse]

I left enough of the flume at 7 feet drop to install fun things like that later.

[@MultiKlompen]

@@LandtoHouse ok ;-)

[@markae0]

There is another video on KZbin where the valves have adjustment screws (that change the internal tension on the spring) to find the correct spot, rather than manually hitting it 100 times.

[@averteddisasterbarely2339]

Can you send a link ?

[@projecthome843]

Seth, I’m always thinking about that waste valve and the loss of water that creates. This idea may violate the second law of thermodynamics, but I’m always thinking on closing the loop lol. How about if you get a 55gal plastic rain barrel, put your rampump inside the barrel, add an extension from the waste valve just above the barrel so water can stay in. Make two holes on the bottom of the barrel, for the pressured water to come out and back in straight to the pump inlet. So the whole idea is that the pump will be submerged inside the barrel. It’s hard to explain but hit me a message if you are interested.

[@user-si5fm8ql3c]

Having a line run from the waste to the input will prevent it from working. A ram pump works by first accelerating the water down the input pipe, this happens because the waste valve is open, with no backpressure fighting back. The flow then closes the waste valve, converting momentum into pressure, which pushes a small portion of the water stream out of the pump into a pressurised line going up to some higher up place. Closing the loop would mean there is no pressure difference to accelerate the water, so the whole cycle cant work.

[@projecthome843]

@@user-si5fm8ql3c let me clarify, there are people that add a weight to the waste valve for a little bit of back pressure, so my idea is to add add a pipe extension from the waste valve and cut it just above the barrel, so water can stay in the barrel. This water in the pipe will create back pressure fighting back. The question is does the waste valve will have enough force to push that water out? Not necessarily connect that to the inlet.

[@vaalrus]

@@projecthome843 putting weight on the waste valve means the bypass water needs more pressure to close the gate, getting a larger impulse to the pumped side when the valve closes. If there is too much weight vs. the head from the supply line, you’ll likely never have the valve closed.. Any extra weight from water that is held above the valve restricts flow and slows the water that you want to be moving as fast as possible.

[@misterdubity3073]

If you owned more creek below your RAM pump, you could capture the waste water making a new source of already filtered water, let that drain into a second drive pipe to a second RAM pump 100 feet downhill. But your second drive pipe might have to be smaller diameter than your first drive pipe since its only source of water would be the waste from the first pump. But the pressure head in the waste water is zero (or a few inches) whereas the pressure head in the drive pipe is maybe 5 feet. If you made a feedback connection, the drive pipe water would just bypass the RAM pump and make 100% waste water

[@blurcak]

Trkač :)