What happens after you flush the toilet on a cruise ship?

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Have you ever wondered just what happens after you flush the toilet on a cruise ship?
Does the waste just go straight into the sea?
In this video, we look at how these huge ships can deal with thousands of tons of sewage every day.
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Detailed Image Of Cruise Ship - Mechanik / Shutterstock.com
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★ Images
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[@jakebramhall3479]

When you think the bacteria are working but they really are living a life of opulence and luxury by their standards

[@BiFurDoggy]

i mean if giving those little buggers a life of luxury is so useful to us then it's hella worth it lmao

[@jawadibrahim2367]

They're first class passengers onboard of cruise ships, makes total sense to me.

[@Lennyp4]

🦠

[@ricojes]

Bacteria: "Dis sum good shit!"

[@Fit4C]

Jesus loves you all very much repent and believe onto Him and be saved from eternal punishment of sin amen, Jesus DIED for you

[@asdf072xxp]

"Captain, the ballasts are too low. The ship is destabilizing." "Call the kitchen. We're serving burritos tonight."

[@Andrei2000PC]

Haha number one comment

[@notmypresident3107]

Burger King is now selling tacos for $1!

[@AirWolf2600]

😂😂😂😂😂

[@Zeckmon3]

Jack sparrow: Get taco bell on the line!

[@tsimmons1974ts]

🤣🤣🤣🤣😆😆😆😂😂

[@Manniefield]

On site waste water Installer/inspector here! The ships sewage treatment system you described is just like a system we install all over Washington state! It’s called a NuWater, even has a “sludge return” that sends sludge from the clarifier back into the trash tank! Pretty neat the similarities household systems have with large maritime systems.

[@the_undead]

A long time ago we figured out proper filtration of water and at this point it's been perfected to a point where it's basically the same process for the same type of wastewater. If you do filter gray water it will be a different process more often than not.

[@Aririnkitaku]

this is all fine and dandy until someone waffle stomps a turd down the shower

[@iHopeyoure0ffended]

WHAT?!

[@iHopeyoure0ffended]

WHAT ARE THEY DOING WITH WHAT?!

[@pigeonpallz1733]

True......true

[@colbalt95]

Luckily not everyone is doing it the turd has already been broken down at that point its going to go the greywater system.

[@josephsheranda]

What about when you have really bad diarrhea and your bum hole gets sore? The best comfort for that is taking a poo in a gentle warm shower.

[@cr_cycle7987]

‘’KZbin recommendations has brought us together again.”

[@maitsepolitsei]

did you already saw video about restoring old soviet chainsaw?

[@frankgraham1996]

Shit is a binding agent.

[@mrHANSSI]

You got a «shitty» recommendationlist

[@jimothyj2638]

You edited this comment yet you still misspelled brought

[@cr_cycle7987]

Salt Salt don’t get jealous

[@billmead5052]

"The bowels of the ship". Nice little ending :-)

[@SeanFerree]

Lol!!

[@k-mehrenworthallrightsrese577]

Good to the last drop

[@billludolph1696]

Fish loves grey water...shit happens

[@dalegreen7905]

K-M: Ehrenworth all rights reserved

[@dalegreen7905]

K-M: Ehrenworth all rights reserved. Qqqqqq

[@JasperHuskyFox]

I'm binge watching these because these are very very pleasing to the eye, easy to understand, and very informative! Keep up the amazing work!

[@mayureshvadke5498]

I got a test tomorrow but I find this interesting rather than studying xD

[@griffini19]

Disinformation from the Cruise industry Do some real research.

[@traindude432]

Furry!

[@stevebennett9839]

5:43 it's not just clean, it's miracle water. It brought those fish back from the dead.

[@shan_singh]

Hahahaha

[@suheelqaderi7044]

😂😂😂

[@Bacon17855]

Lol

[@lavapix]

So when the ships hull is compromised by either running aground or hits an iceberg it's appropriate to yell, Oh sheeeit...

[@josephjackson1956]

Store High In Transit

[@abdelkadersenouci3108]

@@josephjackson1956 R/woosh?

[@abdelkadersenouci3108]

@@josephjackson1956 ohhhhhhhhh

[@josephjackson1956]

@@abdelkadersenouci3108 lol

[@DM0407]

No shit

[@LucresntBlade]

I'm pretty sure some of the Gray water has pee in it considering some people pee in the Shower.

[@scheimong]

Unlike feces, pee is generally sterile*, so basically it's just water with some organic compounds. In that sense it's actually cleaner for the environment than bath water, which contains lots of artificial chemicals, surfactants in particular. Edit: okay since people seem to have a problem with me saying "pee is generally sterile", let me clarify: I'm not recommending you use pee as disinfectant, and in fact I am most likely technically incorrect. I am saying that in the context of waste water treatment, pee is not very harmful to the environment when compared to bath water. There are billions of Fish in the oceans that pee all the time. But fish don't use shampoo, at least as far as we know.

[@brettunderwood7291]

Waffle stomp 😂

[@TheShadowWolf1]

@@brettunderwood7291 Don't you start. My god the images that story put in my brain.

[@Laluan]

Doesn’t everyone do that?

[@slicksweet1]

What about period blood dripping out in the shower? Gonorrhea pee? That crap is NOT sterile...😑

[@You-dx8fm]

I'm a seafarer myself and I can say this guy knows what he's talking about. very entertaining channel mate. new sub here

[@AndyHappyGuy]

Fun fact: Titanic and her sister ships just discharged waste water into the sea.

[@kornisonkiseli3248]

😒 Disappointed. Should have been rooting for iceberg instead of Leo.

[@iamvinnyyes]

oh shit

[@stanpines9011]

I mean did people really think about the environment at that time

[@williammahony9347]

Well... the Titanic discharged everything on the ship into the sea.

[@rizalalbar]

@@williammahony9347 and that's why, we now have IMO.

[@johnadamski9913]

I have been on a 160,000 ton, over 5000 passengers. Always been curious about what they do with waste water.

[@iMadrid11]

NCL has documentary videos on their cable channel on how they recycle their waste water. Every crew have to attend training seminars on how to properly dispose of our waste water on the ship. There are sinks and drains with signs warning not to dispose chemicals. Since those pipes goes direct to waste water recycling. If you ask for free potable water water or ice. That water is either desalinated or recycled from grey water. But that water also has to pass through a 3 stage water filter on the water fountain dispenser and ice machine.

[@mr.Ragers]

Chris Bautista great id like a whisky on the rocks made from shit.

[@ghusaghusa2135]

they make soup with it

[@westonbadke5434]

John Adamski the data given in this was incorrect. Majority of consumed water is recycled. Pool water, AC function, drinking and washing water is all a combination of Watermaker Desalination system, or recycled treated water.

[@luxurycarkey7207]

It goes right into the ocean who are they kidding...

[@FIGNAS83]

Those little bacteria are the unsung heroes of the cruise ships.

[@barryandrew9117]

🤣🤣

[@mfaizsyahmi]

They're the unsung heroes everywhere. It's basically the same system in sewage treatment plants everywhere on the planet.

[@JDnBeastlet]

Fascinating stuff. It's very interesting to see how it's treated. During years of RVing we became very familiar with black and grey water, although the systems merely store the waste until it can be responsibly disposed of.

[@Nallah108]

…it's dried and served as chocolate-waffles next morning.

[@imlivingunderyourbed7845]

Jesus christ...

[@HerpDerpNV]

Straight to the soft serve machines

[@timothyflanagan3641]

@@HerpDerpNV Tom Carvel poops just like the machine.!

[@emilieh4180]

nice...

[@grondhero]

And you *Liked* it. ;)

[@notmypresident3107]

Such projects are engineering marvels. It's fascinating what humans can accomplish. They're building future floating cities so this technology is vital for future survival

[@shadowxxe]

You didnt have to watch it

[@kevinmael3862]

@@shadowxxe but we made her.

[@KandiKlover]

Cute how he thinks pretentious feel good little laws actually mean shit in international waters lmao specially when cruises always foreign register ships or go to other jurisdictions to avoid retard EU shit. Such a naive infant.

[@waverleyjournalise5757]

This video should be shown to everyone who believes blackwater is discharged untreated... Your voice is so calming and the topics you pick are so sensible. I'm definitely subscribing

[@runarandersen878]

Will Jolliff : I think for some ships this is still the case. But luckily new restrictions keep coming.

[@cazw179]

Watched a programme recently that stated Carnival are the worst and have been fined millions for dumping waste oil. Thanks to a whistleblower.

[@waverleyjournalise5757]

@@cazw179 Carnival are totally falling apart lately. Emissions problems, machinery problems, staff problems and fines - it's a wonder people still sail with them.

[@jkg6211]

@@waverleyjournalise5757 My last experience with Carnival was back in 2003. That did it for me. lol

[@PabloGonzalez-hv3td]

@@runarandersen878 - I last sailed in the Navy about 10 yrs ago discharge regulations are nothing new they are however all geographically based and in certain areas of the oceans it's technically legal to dump that doesn't mean ships discharge raw sewage in these areas treatment technology is by no means complicated

[@plungehorn3567]

Great video! I'd like to point out that according to MARPOL Annex IV, the discharge of untreated sewage is allowed beyond 12 nmi from the nearest land outside of special areas (Baltic Sea for passenger ships). In theory this means that a passenger ship crossing the Atlantic can discharge raw untreated sewage directly to the sea at a moderate rate. Cargo ships can discharge raw sewage even in the Baltic with the 12 nmi rule. There are also problems with sewage treatment plants as recent studies indicate that in many cases they do not function as they should due to technical or operational reasons. This means that there are cases where raw sewage is discharged right in front of our beaches. The discussions regarding this issue are ongoing at the IMO.

[@sagsfv3122]

Eeeewwwwwwww!!!

[@Feelthefx]

3:50 sorry for the guy who has to clean those filters

[@SaranganiBob]

Don't feel sorry for him, he makes a fortune recycling condoms and recovering the bits of gold from dentures.

[@whoami1449]

Cruise ship worker, especially the technical ones like the one that work in the water treatment department, is paid extremely well.

[@markuscamp8525]

I don’t really like poop jokes, but it is a solid number two.

[@Novusod]

Why don't they put the sewage treatment system on the "poop deck."

[@dennisstewart2712]

-_-

[@aduptuniform2647]

Just leave get out

[@chummychimchim]

Lol!

[@budmann4687]

That's good. Love it 😊

[@boomin7713]

I wish I was taught at school like this, it would make it much more interesting

[@optimusprime5166]

Yeah at least we have internet. My be like how do you know all this type of stuff. I be like I'm smart lol. It just be KZbin tho.

[@rubix2007]

They should add a class in school called : KZbin Where you can just search youtube for anything school safe and educational to your own liking for the hour. Would be easy to pay attention, and the amount of cool stuff you could randomly learn in a year would be far more useful than the garbage shit and homework you are givin in other courses.

[@whwhwhhwhhhwhdldkjdsnsjsks6544]

This is literally what we learned in school lol

[@Sponge_Bob_Square_Pants]

You will straight go to poran hub after this

[@lemonandgaming6013]

@l atleast this here video, was fun though. school is neither fun nor useful. and besides, through youtube and the internet in general, people of course, DO learn things more valuable than "where does it go on ships"

[@TheCurrencyQueen]

I just love hearing him say “water”

[@rinkashikachi]

2:36 this is a diesel room of the german submarine U-995, not a sewage system

[@ungabunga3183]

I knew this looked more like a engine than a sewage treatment system

[@TomCouger]

What's the difference amiright

[@johnwhite7700]

I don't even know if it's a joke

[@Krakatov]

He didn’t say it was a sewage system. He literally said “down in the engine room” and showed s picture of an engine room.

[@stevedoubleu99B]

Everyone's done all the jokes, so i'll just say that was an interesting and well crafted video.

[@bountyhunter4885]

One more... Roses are red, Violets are blue... Now I really know my number two. 💩👌

[@Ethernet480]

best joke yet

[@Ender-jl8dd]

It’s at 420 likes I won’t like it

[@evansuddreth388]

Yup

[@TamilKalanjiyamvideos]

Hi... Great video.... Can you mention which software u use for these amazing animations ?

[@CasualNavigation]

I use the Adobe suite, but any motion graphics software would do it

[@TamilKalanjiyamvideos]

@@CasualNavigation thanks for your reply

[@luisespinal5585]

I love love love love love this video. The voice how it was so calming and relaxing, and the actual video of how it discharges into the water actually being more fresher than most water is mesmerizing.

[@iyataitt2684]

Great vid man! I love learning about underlying mechanisms, processes, and systems.

[@alexj9175]

Loving the sound affects of the bacteria :')

[@NorthWestern1919]

I always assumed a sewage tank. I know the Olympic Class liners had a large fresh water tank for sinks, toilets, etc. Still, I can't wait to see how ships do it. Edit: I see I wasn't that far off

[@quillmaurer6563]

The Olympic Class liners I'm sure just dumped it overboard, no treatment at all. Back then there weren't really any regulations on such. I don't think even land-based sewage was typically treated back then. The fresh water tanks may have been because it was cheaper just to carry it on board than to run desalinization at the time, if they even had that ability at all.

[@NorthWestern1919]

@@quillmaurer6563 The fresh water tanks were only there to supply water to sinks and showers.

[@quillmaurer6563]

@@NorthWestern1919 Yes, carrying it aboard from land rather than producing it through desalinization as modern ships do. Given the limitation of carrying it on board, I'd imagine the toilets probably used seawater?

[@NorthWestern1919]

@@quillmaurer6563 Yes, I think so, but I'm no expert on the Olympic class.

[@hugos5114]

@@quillmaurer6563 oh, toilets, the pool, and even all bathrooms used seawater. there were small systems to desalinize water but they weren't very efficient

[@mov6001]

Me: what a dumb question... Me,2 seconds later: this is actually a pretty good question

[@ianoliver3879]

Thank you very much. Good stuff. No padding, just information. Excellent.

[@liammay7756]

Spoiler: it drains in a tank that feeds the drinking water.

[@grassfedmilkmomma]

I knew this would end badly

[@stormtrooper7177]

It's all just water under the boat.

[@scirvy]

@@stormtrooper7177 www.reddit.com/r/woooosh

[@SONNENKVLT]

tl:dw

[@someinternetbox168]

Lol good job

[@kevinsantoso7430]

Help. This channel is way underrated

[@KokoroKatsura]

A N I M E N I M E

[@nineball039]

Fascinating! I had never thought about this until it popped up in KZbin. Great explanation.

[@ozgurcagin]

There are several other methods and systems for this. This is just an examplary one. Not all sewage treatment plants work this way. For those who wonder what happens to the oil coming especially from galley sinks; there are also grease traps in these systems

[@mikaylablevins4152]

I just got off a cruise today from the Bahamas and been wondering this the whole trip 😂😂😂

[@carlosmaldonado5411]

Mikayla Blevins 😆lol

[@popcornegg4405]

Is this the only time where someone is actually wondering and stumbles across this guy’s video about it?

[@user-dw1jm1zr2w]

Ask them if they make people drink the treated water.

[@noanyabizniz4333]

Bacteria be eating yo shit!!! 🤣🤣🤣🤣

[@timothyflanagan3641]

Me too I sat in my cabin and pondered that thought the whole trip.!

[@sorryididntsub2596]

The classic old "Where my Dookie go"? question love it!

[@duncanread4442]

That was brilliant! Just the right amount of info. With a good understanding of the whole proses. 👍

[@TheKurtsPlaceChannel]

Very entertaining and fun to watch. Thanks for posting this.

[@joshxkerrigan]

Great video, I had no idea they filtered before it went into the sea, just thought the greywater/bathwater was a-ok and the blackwater was stored until docking. Very cool to see though.

[@jakelichtwark9202]

Why am I up at 1am watching a video about sewage on a ship...

[@cringeworthyhumans160]

"Yes"

[@kyoakland]

It happens

[@woowooNeedsFaith]

It is something you need to consider next time you are planning to build a cruise ship.

[@ENZOxDV9]

At least you're watching something educatory and not some random crap

[@KYNQxEdz]

Weird that it all showed up on our feed at 1am ... it’s 1am here too 😳

[@simondavey7787]

Thanks for an incredibly insightful video. I've done a number of cruises and I often wondered about waste water.

[@clemd3560]

Thanks for the video..so informative

[@davidb3172]

Submarine's engine room @ 2.35. I learned about sewage treatment systems at nautical college 40 years ago.

[@tim25811]

Do NOT flush if you see bubbles in the water lol

[@CommunistKiro]

water + flip-flops = gray water woah, the more the know!

[@eddieceniceros86]

Great video. Very informational

[@rayleighg9235]

Thanks for this info. I just watched a news about cruise ships and got me thinking of this

[@mindfield7]

You’re videos are well done. I don’t go on cruises but I find marine engineering interesting.

[@brianbravo6930]

join the navy and be an engineer youll hate it :^)

[@SportSoulLife]

Be smart and become a merchant sailor. Youll either love it or hate it

[@blackpeterose]

Nice Review! Always Wondering what happens to the waste on ships! There is so much going on on a Cruise Ship. Incredible.👍🏿

[@kornisonkiseli3248]

Brown thumbs up 🤣

[@sailorman9595]

Regulation 11 - Discharge of sewage 1 Subject to the provisions of regulation 3 of this Annex, the discharge of sewage into the sea is prohibited, except when: .1 the ship is discharging comminuted and disinfected sewage using a system approved by the Administration in accordance with regulation 9.1.2 of this Annex at a distance of more than 3 nautical miles from the nearest land, or sewage which is not comminuted or disinfected at a distance of more than 12 nautical miles from the nearest land, provided that, in any case, the sewage that has been stored in holding tanks shall not be discharged instantaneously but at a moderate rate when the ship is en route and proceeding at not less than 4 knots; the rate of discharge shall be approved by the Administration based upon standards developed by the Organization; or .2 the ship has in operation an approved sewage treatment plant which has been certified by the Administration to meet the operational requirements referred to in regulation 9.1.1 of this Annex, and .2.1 the test results of the plant are laid down in the ship's International Sewage Pollution Prevention Certificate; and .2.2 additionally, the effluent shall not produce visible floating solids nor cause discoloration of the surrounding water. 2 The provisions of paragraph 1 shall not apply to ships operating in the waters under the jurisdiction of a State and visiting ships from other States while they are in these waters and are discharging sewage in accordance with such less stringent requirements as may be imposed by such State.

[@kornisonkiseli3248]

Awesome content, I'm so glad you landed in my recommendations 😊

[@PsylentSir]

*Imagine the maintenace the engine crew make to that tanks and pumps to keep it running, as an engineer it is more like a hell*

[@Unformed8]

Came to understand what ships do with sewage water. Come out knowing the basics of sewage treatment, instructions super clear?

[@pranabbora279]

Thank you for the video!

[@WithKarl]

How is this so relaxing? Great video, learnt a lot.

[@FraserAtSea]

I find this stuff absolutely fascinating - on NCL Escape a few years ago, they told us that the water expelled back into the ocean was the quality of drinking water - absolutely blew my mind!

[@Susie6683]

Interesting and informative. Thank you.

[@____-pb1lg]

Good video as always and good channel, well done.

[@TheKurtsPlaceChannel]

Great video. Thanks for posting this. Have a nice day.

[@KayliePrice]

Great video. Thank you.

[@rawiaahmadg5s891]

So informative...good work

[@maxl5112]

The "settlement" chamber is actually flocculation, which is the process of using a flocculant such as aluminum sulfate, which binds loose particals within the water and makes them dense enough to sink, leaving pure water on top

[@iwillappearanddisappear1208]

I found this video a year ago and for some reason this is my favorite video on this channel

[@colinlacey9993]

The toilet flush works as a vacuum. Very powerful on my last cruise I lost two loo brushes and my underpants.

[@bieresnavigationettheories5846]

I love your videos ! you make every topic interresting!

[@CasualNavigation]

Thanks Lionel

[@joelkumar2853]

You deserve a lot more subscribers!

[@TuffBurnOutTeam]

Great video 📹 thank you For Sharing Australia 🌏

[@mikekelley4181]

People on vacation probably drop tons of 2's and huge ones too considering all that food that's available.

[@elfrank333]

Wow pounding in my head so much knowledge i don't need

[@crybab3y__]

LOL

[@naveenraj2008eee]

Hi sir I had this doubt what they do with waste water.. Now i got good idea from this video.. Thanks for another informative video...🙏👍😊

[@jonny__b]

It warms my heart to hear popular KZbin channels use places like "Glastonbury" to guage populations ❤️ great to hear some places I recognise!

[@aRVeesBlog]

Interesting Thanks for the info

[@middleman3165]

This is amazing, thank you.

[@StrongAsHouses]

This is exactly what I used to design. I used to be the process engineer for Wartsila. What you described was a standard sewage treatment plant, where most tankers, cargo vessels and old cruise liners have. The newer cruise liners usually use a more advanced type using MBR or MBBR technology due to the more stringent IMO 227.64 including section 4.2. I'd be happy to explain further if you're interested.

[@Rebasepoiss]

Do ferries just use regular storage tanks and then empty them at the harbours? I'm talking about ferries that do relatively short journeys, up to 20 hours, let's say. I'm interested in this because I live in Tallinn which has a very busy harbour at around 10 milion passengerys annually, most of them travel between Tallinn and Helsinki, some between Tallinn and Stockholm. The rest (approx half a million) are cruise tourists.

[@StrongAsHouses]

@@Rebasepoiss It depends on a lot of variables including space, the amount of water that is required to be stored and how much the ports charge to accept the wastewater. For those sort of ferries it would easiest to just store the water until they get to the port. However after a cost analysis it might be more financially viable to put a simple sewage treatment plant on.

[@seraphina985]

@@StrongAsHouses Still can't imagine it should be all that expensive I would expect the bulk of the cost for it would simply be compensating the port for their sewage bill along with a small fee to oversee the transfer process since I presume that is probably what most ports do is just dump it into the municipal wastewater system of the nearby city.

[@geoffreykitson532]

Great job on this video very well spoken, I’ve wondered for years what happened to human waste on ships. Well done.

[@casperko8311]

Thanks. Always had trouble knowing where to get a drink on a ship.

[@FedericoSpada13]

Where does the water come from? A huge tank filled at the port or do they purify sea-water during the cruise?

[@CasualNavigation]

Both actually. Big storage tanks, which can be filled from the shore, but they also use waste heat from the engines to make fresh water all the time the ship is running too.

[@themusicalpilot1382]

Modern vessels usually have an onboard desalination plant where they can take in sea water, and remove salt and other contaminates to make it same for consumption it use in toilets, showers, sinks, etc

[@runarandersen878]

I also would have guessed they use sea water. Instead of carrying huge amount of water. I also guess for some small islands, using their water to fill a large cruise ship would not be good because of the amount.

[@Danieloncarevic]

Mostly sea water itself. Then using something like "reverse osmosis" which basically removes the salt, to put it the simplest way possible. That being said, when vessels spend more time in port or shallow anchorages it's not possible to get sea water so some reserve must be on board, depending on the size of the vessel and the demand. It's not rare that vessels take fresh water from the shore, depending on the area they are trading and the effectiveness of their water treatment facilities on board.

[@maheshbkalgudi3630]

Fresh water generator(evaporater)

[@R.N.GPerformance]

That’s cool I didn’t know that. Thank you.

[@viktorartemiev6147]

Massive thanks!

[@1mplies]

Surprisingly fun to learn about things I've never had questions about.

[@phonotical]

"they don't dump it into the sea"... "then they eject it into the ocean"

[@stormtrooper7177]

It's all down to the speed of the disposal 😉

[@phonotical]

@@stormtrooper7177 like diarrhoea!

[@giin97]

They don't "just" dump it into the sea ;)

[@permanenteuphoria2723]

“Hopefully you enjoyed today’s topic” it was a bit shit. All jokes aside, interesting video.

[@felipebetioli4391]

I LOVE THIS CHANNEL!!!

[@zman90]

I never thought Poop in cruise ships was so interesting

[@Sophie-dt3ck]

It truly is how uncanny ships are to actual living beings.

[@threethrushes]

Good analogy: except they don't reproduce, nor grow.

[@NFLYoungBoy223]

Sophie same thing with cars

[@vernalc2449]

Another question answered. Thank you, again.

[@cokeforever]

There are cities on sea shores dumping entire sewage volume to the sea. A typical standard is 12nm from shoreline.

[@Learninghowtodougie]

Remember to flush twice, people. For stability!

[@Perich29]

I've flush 3 time, 1 before using and 2.time after using it.

[@xmengodzilla2816]

Perich29 Same here😂😂

[@angelsalinas4102]

Perich29 why what the point

[@AM-kn5ch]

Why would you do that

[@alexnutcasio936]

40-50 gallons of water a day for average person? He hasn't met my kids!!

[@MrSvenovitch]

your spoilt darlings will go extinct with the rest of us, don't worry

[@pyromaniac354]

Im Irish so we drink more beer than that daily.

[@IroAppe]

Andy Theber A solar minimum? I think you mean a solar maximum, that‘s the dangerous one. A large solar storm could destroy most of our technology, and then there you are. No infrastructure to support so many people anymore => hunger, thirst, resource wars => population reduction.

[@forestdenizen6497]

Toilets on ships use far less water than domestic toilets. Less than 1 litre per "flush." "flush" because, although it wasn't mentioned in this video, the system actually uses a vacuum to suck the waste through the pipes. Each toilet has a valve in the U bend, flushing cycles the valve. Only a little water needed.

[@GoodMusicManiac999]

@@forestdenizen6497 Oh, it's correct. I even saw a documentary on a lady who had even her bowels sucked out of her body because she flushed while still seated.

[@Proteusbound]

Very interesting.. Thank you.

[@danielvaizman3935]

This channel is so interesting

[@iwillappearanddisappear1208]

Ik

[@Gabrielmoon777]

Shout out from Glastonbury! That’s caught me by surprise 😂😂😂

[@RiggingDoctor]

We have a composting toilet on our sailboat. I wonder if that system could be scalable to work on a larger ship?

[@jackwatsonepic626]

These sorts of videos are so educational it is better than watching the soaps on what I call normal TV

[@nicazer]

What do you do as a not-youtube job? You know so much about naval architecture, design, and function, as an amateur sailor I am very impressed!

[@antonman1234]

I enjoyed this a lot

[@roberttucker1527]

Same, good to know that ships aren't that dirty

[@jonaskviteberg6047]

ok ive never hit the notification faster

[@gregdark5203]

Jeez what a process. Absolutely fascinating.

[@artemkyryliuk5213]

Finally, the recommendations that I needed

[@samuelmaltry6727]

0:10 been on her , Pacific Dawn and Pacific Jewel 😁 she certainly ain’t small at 70000 tonnes it’s just that others are bigger now

[@AceRoane]

Pacific Jewel is now the Karnika

[@shadowxxe]

well small by todays standards

[@samuelmaltry6727]

shadowXXe I agree nowadays some cruise ships have more people than my town 😂😂

[@samuelmaltry6727]

Ace Roane I know 😔

[@lukeson8934]

been on the jewel twice and i got lost so easily on the first few days