Do Carnival ships use grey water in toilets?

[dsotm73]

On another site someone was complaining that the water coming into the toilets smelled of urine because it is gray water from sinks and showers, and the urine smell was because people peed in the shower. Any truth to this? Is Chengkp75 around?

 

 

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Edited April 9, 2018 by dsotm73

[asalligo]

No, it is not grey water.

[Kamloops50]

On another site someone was complaining that the water coming into the toilets smelled of urine because it is gray water from sinks and showers, and the urine smell was because people peed in the shower. Any truth to this? Is Chegkp75 around?

 

 

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No water can be used until fully processed back to drinkable water . All the water on board that passengers use comes from the same source. The process water from sinks , showers and toilets are proces to the point it can be released into the water. Deck crew uses this treated water for use for washing decks and windows.

[Toesinthewater728]

On another site someone was complaining that the water coming into the toilets smelled of urine because it is gray water from sinks and showers, and the urine smell was because people peed in the shower. Any truth to this? Is Chengkp75 around?

 

 

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Is it possible that, and hear me out in this... The toilet is what smelled like urine?

 

 

 

Royal Majesty 11/16/12 Bud Light Cruise

Carnival Legend 11/17/13

Carnival Glory 3/9/14

Carnival Dream 10/19/14 WSOP Cruise

Carnival Valor 1/11/15

 

Carnival Horizon 4/13/18!!!!

[dsotm73]

Is it possible that, and hear me out in this... The toilet is what smelled like urine?

 

 

 

Royal Majesty 11/16/12 Bud Light Cruise

Carnival Legend 11/17/13

Carnival Glory 3/9/14

Carnival Dream 10/19/14 WSOP Cruise

Carnival Valor 1/11/15

 

Carnival Horizon 4/13/18!!!!

 

 

 

Yeah, well that’s what I was saying! [emoji41]

 

 

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[Micahs Grandad]

Does this mean we could actually drink the stuff? Yuch

[Kamloops50]

Also keep in mind that toilets are vacuum operated.

[shof515]

blame your nasty cabin neighbors. someway somehow, all of the plumbing is closely connected to each other. if there is a plumbing issue with one cabin, it is common for it to affect multiple cabins down the pipe.

[jayscore]

Even tho I hate this term, but, Trust me, the tap water is fine for consumption!

[ParrotRob]

Does this mean we could actually drink the stuff? Yuch

 

Please tell me you're not serious.

[SFBayAreaShipLover]

Please tell me you're not serious.

 

 

 

Wet likely the smell is coning from it being a vac toilet system. Yes waste water can be treated and reused, as said oft men used for on deck cleaning, windows. And have read some ships using for the toilets. For many years salt water was used for toilets but very corrosive to the piping and control system.

All waste is recycled even on he space station and reused as potable water by the astronauts.

 

 

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[SFBayAreaShipLover]

Wet likely the smell is coning from it being a vac toilet system. Yes waste water can be treated and reused, as said oft men used for on deck cleaning, windows. And have read some ships using for the toilets. For many years salt water was used for toilets but very corrosive to the piping and control system.

All waste is recycled even on he space station and reused as potable water by the astronauts. Yes even for there coffee.

 

 

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[ParrotRob]

Wet likely the smell is coning from it being a vac toilet system. Yes waste water can be treated and reused, as said oft men used for on deck cleaning, windows. And have read some ships using for the toilets. For many years salt water was used for toilets but very corrosive to the piping and control system.

All waste is recycled even on he space station and reused as potable water by the astronauts.

 

 

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This isn't the space station and they don't recycle gray water into drinking water. The space station has no choice but to recycle water. Your cruise ship, on the other hand, is floating on 332 million cubic miles of the stuff.

[ParrotRob]

Every ship in the fleet makes more than enough fresh water to supply all drinking water, sinks, showers, and toilets. Nowadays many even fill the pools with fresh water. No need to reuse gray water.

[Expat Cruise]

Does this mean we could actually drink the stuff? Yuch

 

Well in fact if you tested the water on the ships even if from waste water it will test better than many public water suppliers. Singapore gets 30% of the water supply fro the country from waste water.

 

From Singapore Water Systems:

 

Raw water from various sources is conveyed by pipelines to the waterworks where it is chemically treated, filtered and disinfected. Treatment frees the water of harmful bacteria and suspended particulate matters including those in the micron range, makes it clear, sparkling, odourless, colourless, and safe for consumption.

 

At Chestnut Avenue and Choa Chu Kang Waterworks, the suspended particles are removed by membrane filtration. The filtered water, on its way to the clear water tank, where it is temporarily stored, is disinfected with chlorine to get rid of all harmful bacteria and viruses. Finally, the water goes through a series of water quality tests before it is piped to the customers.

[klfrodo]

I'm having to rethink that old axiom about questions not asked. We may be there. :o

 

However, kudo's for asking a real first time question in 10 years.

[BlerkOne]

Every ship in the fleet makes more than enough fresh water to supply all drinking water, sinks, showers, and toilets. Nowadays many even fill the pools with fresh water. No need to reuse gray water.

 

Because they can "make" water doesn't mean that they do. In just about every port, you will likely see potable water hoses filling up tanks.

[loxley]

It is amazing the stuff people can come up with that is totally untrue.

 

The water in the toilets is the same water that is coming out of all the taps onboard.

 

If push comes to shove, yes, you can drink it.

 

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[SFBayAreaShipLover]

The CDC has very strict rules how potable water is treated and maintained. Lot of times the water is chlorinated, then though charcoal filter to remove the chlorine and then will often go through UV light treatment. And graph charts of ph reading are maintained by CDC during inspections. Ch C correct me if I’m off on some of this. Been 20 years since operating those systems on ships

 

 

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[Moviela]

Some people have sensitive sniffers and can detect what most miss. If you smell urine you should check your own leaky tiki because the ship's water is potable water from shore, or desalinated from sea water. The exception is filtered potable water used for exterior washing.

 

There is really no health issue here. People with negative reactions to tap water will find plenty of bottled water aboard.

[chengkp75]

Okay, haven't heard this one before. If you ever get a chance to look in the technical locker behind one of the bathrooms while the plumbers have it open, you will see a blue pipe (cold water) and a red pipe (hot water) coming from the passageway to the cabin. The hot water will branch to the sink and shower, the cold will branch to the sink, shower, and toilet, just like at home. Unlike land toilets, where even a low flow flush uses 1.3 gal (4.8 ltr) per flush, the vacuum toilet uses 1 ltr, so significantly reducing water usage.

 

While ships may have the capability of making all the water needed, if the time at sea is not enough compared to the time in port, then they will load water from municipal supplies in port. Water making capacity is limited by the time spent outside 12 miles from shore, and the speed the ship is making (the more speed, the more diesel engines are running, and the more heat is produced to power the water making).

 

Some ships do recycle water from the waste water treatment plant, but not for any use by passengers. And the only water that can be used in this way must be from an Advanced Waste Water Treatment plant, which does process waste water (black and gray) back to pure standards (and are tested by third party testing labs every other month). I haven't heard of this being used for deck washing, though it could be. The more common uses are "technical water" in the engine room (fresh water not considered potable, used for cooling water systems, etc) and in the centralized garbage disposal system.

 

Another method of water "recycling" is using the tens to hundreds of tons of water condensed from the AC system. This water is commonly used in the ship's laundry.

 

Water loaded in ports must first meet EPA requirements for safe water, and be tested for such at the very hydrant being used by the ship, monthly. It is then chlorinated before it goes into the tanks. This water must be kept segregated from all other potable water onboard, and not used, until a coliform bacteria test is completed and comes back negative, which takes 18 to 24 hours. Water made onboard, either by distillation or by Reverse Osmosis, is chlorinated before it goes into the tanks. The water to the users on the ship is constantly circulated, from the tanks out through the piping, and the unused water returns to the tanks. (This may be the reason for the thought that "recycled" water is used in the toilet). The water in the mains circulates, and when you open a tap, some of the water goes out the tap, but the pumps provide more water to the mains than everyone could possibly use, so some always returns to the tank, from the supply pipes, not after being used. This water is chlorinated while recirculating, and kept at a constant chlorine level.

 

Carbon filters are used at machinery that uses potable water, like the water stations the wait staff use in the dining venues, the water and drink dispensers in the buffet, the bar guns, and the ice makers. This is done not for improving the taste, though that is a side benefit, but because the chlorine can cause scaling in the machinery. UV sterilizers, while common on most ships in use today, are not that common on cruise ships because of the sheer volume of water to be treated, and the size of the sterilizer that would be required. UV sterilization is mostly used when chlorination is not used, and USPH requires chlorination.

[ParrotRob]

Because they can "make" water doesn't mean that they do. In just about every port, you will likely see potable water hoses filling up tanks.

 

Your point? They still don't use gray water to flush toilets.

[Micahs Grandad]

Okay, haven't heard this one before. If you ever get a chance to look in the technical locker behind one of the bathrooms while the plumbers have it open, you will see a blue pipe (cold water) and a red pipe (hot water) coming from the passageway to the cabin. The hot water will branch to the sink and shower, the cold will branch to the sink, shower, and toilet, just like at home. Unlike land toilets, where even a low flow flush uses 1.3 gal (4.8 ltr) per flush, the vacuum toilet uses 1 ltr, so significantly reducing water usage.

 

While ships may have the capability of making all the water needed, if the time at sea is not enough compared to the time in port, then they will load water from municipal supplies in port. Water making capacity is limited by the time spent outside 12 miles from shore, and the speed the ship is making (the more speed, the more diesel engines are running, and the more heat is produced to power the water making).

 

Some ships do recycle water from the waste water treatment plant, but not for any use by passengers. And the only water that can be used in this way must be from an Advanced Waste Water Treatment plant, which does process waste water (black and gray) back to pure standards (and are tested by third party testing labs every other month). I haven't heard of this being used for deck washing, though it could be. The more common uses are "technical water" in the engine room (fresh water not considered potable, used for cooling water systems, etc) and in the centralized garbage disposal system.

 

Another method of water "recycling" is using the tens to hundreds of tons of water condensed from the AC system. This water is commonly used in the ship's laundry.

 

Water loaded in ports must first meet EPA requirements for safe water, and be tested for such at the very hydrant being used by the ship, monthly. It is then chlorinated before it goes into the tanks. This water must be kept segregated from all other potable water onboard, and not used, until a coliform bacteria test is completed and comes back negative, which takes 18 to 24 hours. Water made onboard, either by distillation or by Reverse Osmosis, is chlorinated before it goes into the tanks. The water to the users on the ship is constantly circulated, from the tanks out through the piping, and the unused water returns to the tanks. (This may be the reason for the thought that "recycled" water is used in the toilet). The water in the mains circulates, and when you open a tap, some of the water goes out the tap, but the pumps provide more water to the mains than everyone could possibly use, so some always returns to the tank, from the supply pipes, not after being used. This water is chlorinated while recirculating, and kept at a constant chlorine level.

 

Carbon filters are used at machinery that uses potable water, like the water stations the wait staff use in the dining venues, the water and drink dispensers in the buffet, the bar guns, and the ice makers. This is done not for improving the taste, though that is a side benefit, but because the chlorine can cause scaling in the machinery. UV sterilizers, while common on most ships in use today, are not that common on cruise ships because of the sheer volume of water to be treated, and the size of the sterilizer that would be required. UV sterilization is mostly used when chlorination is not used, and USPH requires chlorination.

 

Thank you once again for your info.

[quickrate]

Because they can "make" water doesn't mean that they do. In just about every port, you will likely see potable water hoses filling up tanks.

Of course they make their own water from the ocean, I don't believe they fill up with water from ports.

Pat

[SFBayAreaShipLover]

Okay, haven't heard this one before. If you ever get a chance to look in the technical locker behind one of the bathrooms while the plumbers have it open, you will see a blue pipe (cold water) and a red pipe (hot water) coming from the passageway to the cabin. The hot water will branch to the sink and shower, the cold will branch to the sink, shower, and toilet, just like at home. Unlike land toilets, where even a low flow flush uses 1.3 gal (4.8 ltr) per flush, the vacuum toilet uses 1 ltr, so significantly reducing water usage.

 

 

 

While ships may have the capability of making all the water needed, if the time at sea is not enough compared to the time in port, then they will load water from municipal supplies in port. Water making capacity is limited by the time spent outside 12 miles from shore, and the speed the ship is making (the more speed, the more diesel engines are running, and the more heat is produced to power the water making).

 

 

 

Some ships do recycle water from the waste water treatment plant, but not for any use by passengers. And the only water that can be used in this way must be from an Advanced Waste Water Treatment plant, which does process waste water (black and gray) back to pure standards (and are tested by third party testing labs every other month). I haven't heard of this being used for deck washing, though it could be. The more common uses are "technical water" in the engine room (fresh water not considered potable, used for cooling water systems, etc) and in the centralized garbage disposal system.

 

 

 

Another method of water "recycling" is using the tens to hundreds of tons of water condensed from the AC system. This water is commonly used in the ship's laundry.

 

 

 

Water loaded in ports must first meet EPA requirements for safe water, and be tested for such at the very hydrant being used by the ship, monthly. It is then chlorinated before it goes into the tanks. This water must be kept segregated from all other potable water onboard, and not used, until a coliform bacteria test is completed and comes back negative, which takes 18 to 24 hours. Water made onboard, either by distillation or by Reverse Osmosis, is chlorinated before it goes into the tanks. The water to the users on the ship is constantly circulated, from the tanks out through the piping, and the unused water returns to the tanks. (This may be the reason for the thought that "recycled" water is used in the toilet). The water in the mains circulates, and when you open a tap, some of the water goes out the tap, but the pumps provide more water to the mains than everyone could possibly use, so some always returns to the tank, from the supply pipes, not after being used. This water is chlorinated while recirculating, and kept at a constant chlorine level.

 

 

 

Carbon filters are used at machinery that uses potable water, like the water stations the wait staff use in the dining venues, the water and drink dispensers in the buffet, the bar guns, and the ice makers. This is done not for improving the taste, though that is a side benefit, but because the chlorine can cause scaling in the machinery. UV sterilizers, while common on most ships in use today, are not that common on cruise ships because of the sheer volume of water to be treated, and the size of the sterilizer that would be required. UV sterilization is mostly used when chlorination is not used, and USPH requires chlorination.

 

 

 

Thanks Chief, as always!!! Glad you pointed out that water recirculates back to tanks constantly,

 

 

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