Do cruise ships fill their pools with sea water?

Cruise ship pools are usually filled with saltwater which has been chemically treated. On some cruise ships, you will find freshwater pools but these are less common. It is possible to have a cruise ship where some pools are fresh and some saltwater, this is very common on Royal Caribbean cruise ships.



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Shipboard potable water (drinking, bathing, whirlpools, etc.) either comes from a shoreside water treatment plant or is generated on board from seawater via Reverse Osmosis systems or Evaporators. Swimming pool water is typically seawater.

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Cruise lines drain their swimming pools at night to discourage guests from trying to enter the pool when it is closed. Draining the swimming pools each night also allows the cruise lines to replace the water with clean water and a drained swimming pool is safer if the weather is rough.

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Cruise ships typically change their pool water every two to three days. This is done to ensure that the water remains clean and safe for passengers.

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The pools are small due to Free Surface Effect. The more room water has to slosh back and forth, the more unstable the ship becomes. The fact that the pools are typically on the highest deck only furthers the need for them to be small.

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Even though twice-daily stateroom cleaning has long been the standard in the cruise industry, how often you like your cruise ship stateroom cleaned by your cabin steward is a matter of personal preference. Some cruisers love the pampered feeling of a stateroom that is always clean -- when done by someone else.

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Usually, this involves your cabin steward cleaning and sanitizing the bathroom, emptying trash bins, replacing towels, making the bed/beds, vacuuming as needed, refilling ice bins, washing and replacing glassware and a general tidying of the room.

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Cruise ship tap water is safe to drink unless you are told otherwise by the ship's authorities. The water throughout the ship has been treated, filtered and frequently tested to meet the standards of the World Health Organization and the U.S. Public Health Service on ships sailing into and out of U.S. ports of call.

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All of that waste is either processed via biodigesters or dehydrators, or offloaded on shore. Some of the company's ships have long had dehydrators, which squeeze the water from food waste and lighten the load that can be taken to landfills, compost sites or waste-to-energy facilities.

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In general, you'll find at least one pool, flanked by one or more hot tubs, plus showers for rinsing off and rows of lounge chairs for sunbathing. Pools are typically small and no deeper than 5 or 6 feet.

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Cruise ship pools are usually filled with saltwater which has been chemically treated. On some cruise ships, you will find freshwater pools but these are less common. It is possible to have a cruise ship where some pools are fresh and some saltwater, this is very common on Royal Caribbean cruise ships.

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When a toilet is flushed on a cruise ship, the sewage travels to the onboard treatment plant. Here the waste is filtered before it enters an aeration chamber. The aeration chamber cleans the waste. It is then sterilized using UV light and released into the ocean when clean enough to do so.

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Children who are not toilet trained (and those in diapers or swim diapers) are not allowed in any of the water facilities on board, as per United States Public Health Services. Toilet trained children should be taken on frequent bathroom breaks. Water sports include pools, spray parks, waterslides and whirlpools.

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All modern cruise ships have air conditioning. Most have air conditioning in all public spaces and also in cabins. The temperature onboard is generally held at a relatively stable temperature regardless of where in the world the cruise is.

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All towels are provided on cruise ships so you don't need to bring your own. As well as bathroom towels, you'll also find pool towels in your stateroom. These can be changed for clean ones as and when needed. When you arrive in your stateroom, you'll find one pool towel for each person.

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In general, cruise ships provide all of the towels you need. This means that you don't only get bath, hand, and face towels for your cabin, but you'll also be provided with beach towels for both swimming in the pool and swimming on your beach day excursions offshore.

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Many cruise ships have self-service laundry facilities on each deck, including washing machines, dryers, ironing and detergent. Passengers can also use the ship's valet laundry services for a fee, which includes washing, pressing and dry cleaning. Alternatively, guests can hand wash and dry within their cabin.

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Cruise ship workers are not supposed to hook up with passengers, but that doesn't mean it doesn't happen. It is rare though – most crew follow the rules because they know they'll lose their job if they're caught. You won't be surprised to hear that cruise lines ban crew from having sex with passengers.

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Every cabin has a bathroom built into the room, just like you would see in a hotel room. However, as you would expect, everything that you need comes at a much smaller scale. Your cruise ship bathroom will have a commode (obviously), sink, counter space, storage, and a stand-up shower.

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The Physics of Water Displacement That means the vessel has to be extremely wide to compensate for the weight-to-water ratio. Approximately 30 feet (9 meters) of the average large cruise ship sits underwater, but as you'll see below, there are more understandable ways to measure this.

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It is winter in the northern hemisphere, ocean temperatures are cooler and since cruise ship pool water is drawn from the ocean, it reflects the same temperature. Pool water during the summer can be considerably warmer due to higher air temperatures and warmer ocean temperatures.

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Cruise ships are launched into the water using the float out technique. This means the cruise ship is built in a special dry dock – an open dock area which has been drained. Once the ship is ready, the dock is flooded with sea water and the ship simply floats out.

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