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cruise ship construction
Why is it that modern cruise ships become "rustbuckets" in only 15
years?! Are they poorly built or poorly maintained? I say BOTH! Many ships built in the 80's and 90's have STEEL water and drain pipes. They rust out in 12 years. Where does that leaking water go- especially the pipes hidden in the walls?! Are they still using steel pipes in new construction, instead of pvc, hpvc and copper? Many of the laundries have NO drain pipes, in case a poorly maintained washer hose breaks. I've seen 5" of water in a laundry room before. Am I the only one who ever smelled sewer gas throughout a cruise ship? That's due to not cleaning out the drain pipes regularly. It's also due to poorly maintained or no water softening equipment. Cracking and breaking of poor quality calk around upper (outside) deck water drains. Where does all that water go that seeps into those cracks? Makes me wonder what else is deteriorating behind the walls of cruise ships. |
#2
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cruise ship construction
" wrote:
Why is it that modern cruise ships become "rustbuckets" in only 15 years?! Are they poorly built or poorly maintained? I say BOTH! snip Am I the only one who ever smelled sewer gas throughout a cruise ship? That's due to not cleaning out the drain pipes regularly. It's also due to poorly maintained or no water softening equipment. No you are not and not that's not what it is due to. We smelled sewer gas constantly on the aft promenade deck of the Statendam - more when we were in port or when we had a tail wind. It wasn't from not cleaning - it was from poor design. The gas from the sewage vents got re-entrained into the ventilation system. I was told that the ship engineer was quitting because he couldn't stand the complaints anymore and he couldn't do anything about the problem. |
#3
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cruise ship construction
On Tue, 17 Mar 2009 08:52:30 -0700 (PDT), "
wrote: Are they still using steel pipes in new construction, instead of pvc, hpvc and copper? Copper would work, but it is expensive. As for the other two choices, forget it. They would NOT pass the fire codes that need to be followed. PVC or HPVC are quite capable of burning, and producing toxic fumes if they do that can kill quite easily. No one should be using them in areas where fire proof or water tight doors can operate when a fire is signalled, trapping crew and passengers in with the fumes produced by the burning plastic. Even chemicals that are designed to reduce the chance of fire eventually migrate out of these plastics, leaving them dangerous. Do NOT put me on a ship with a lot of that type of pipe on board! http://www.ecocycle.org/askeco-cycle/2005/0318.cfm According to an alarming new report on the dangers of PVC by the Center for Health, Environment, and Justice, PVC production fuses vinyl chloride molecules with toxic metals such as lead and cadmium, which are added as plasticizers and stabilizers. Because of the chemical properties of chlorine, the by-products of PVC production tend to be far more toxic, more persistent in the environment, and more likely to build up in the food supply and the bodies of people than otherwise similar chemicals that do not contain chlorine. PVC is the only major plastic that contains chlorine, so it is unique in the hazards it creates. In use, the toxic substances added to soften or stabilize the plastic do not bind to the toy, bottle, or other product and are therefore prone to leaching. When your child or pet chews on a plastic PVC toy, for example, they can be ingesting these chemicals. One such chemical, DEHP, has been designated a “probable carcinogen” by the EPA. Because so many different additives are used to make PVC, recycling the plastic is extremely difficult, and any #3 bottles that make it into the recycling stream can contaminate and ruin a load of #1 bottles. When incinerated, PVC forms dioxins, a highly toxic group of chemicals that build up in the food chain. When landfilled, PVC poses significant long-term environmental threats as chemical additives can leach into groundwater. RsH |
#4
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cruise ship construction
On Mar 17, 5:11*pm, RsH wrote:
On Tue, 17 Mar 2009 08:52:30 -0700 (PDT), " wrote: Are they still using steel pipes in new construction, instead of pvc, hpvc and copper? Copper would work, but it is expensive. As for the other two choices, forget it. They would NOT pass the fire codes that need to be followed. PVC or HPVC are quite capable of burning, and producing toxic fumes if they do that can kill quite easily. No one should be using them in areas where fire proof or water tight doors can operate when a fire is signalled, trapping crew and passengers in with the fumes produced by the burning plastic. Even chemicals that are designed to reduce the chance of fire eventually migrate out of these plastics, leaving them dangerous. Do NOT put me on a ship with a lot of that type of pipe on board! http://www.ecocycle.org/askeco-cycle/2005/0318.cfm According to an alarming new report on the dangers of PVC by the Center for Health, Environment, and Justice, PVC production fuses vinyl chloride molecules with toxic metals such as lead and cadmium, which are added as plasticizers and stabilizers. Because of the chemical properties of chlorine, the by-products of PVC production tend to be far more toxic, more persistent in the environment, and more likely to build up in the food supply and the bodies of people than otherwise similar chemicals that do not contain chlorine. PVC is the only major plastic that contains chlorine, so it is unique in the hazards it creates. In use, the toxic substances added to soften or stabilize the plastic do not bind to the toy, bottle, or other product and are therefore prone to leaching. When your child or pet chews on a plastic PVC toy, for example, they can be ingesting these chemicals. One such chemical, DEHP, has been designated a “probable carcinogen” by the EPA. Because so many different additives are used to make PVC, recycling the plastic is extremely difficult, and any #3 bottles that make it into the recycling stream can contaminate and ruin a load of #1 bottles. When incinerated, PVC forms dioxins, a highly toxic group of chemicals that build up in the food chain. When landfilled, PVC poses significant long-term environmental threats as chemical additives can leach into groundwater. RsH o.k. Then with a eye toward non-toxicity and non-rust, you would recommend copper for hot and cold water pipes and pvc with an inside coating of something (to prevent contamination of waste water into the environment )for drain pipes.? As far as fire-are we to believe that the entire ship is so burn-proof that a relatively small amount of pvc drain would pose such a danger- even when it is hidden behind fire-resistant walls and floors! Sounds like fire danger ought to be addressed by an all out concentration on fire suppression items like smoke alarms and quick and easily accessable fire extinguishers in every room. galley,dining, hall, etc. on the ship.- in addition to the extinguishers 150' away with the long hoses. |
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