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Member
Posts: 6
| what type of pipe should i use when plumbing out weekender for water will be exposed to some sun? And where to get it? hot and cold water to faucet inside LQ, shower fixture under goose and outlet for hose under goose. Threre are so many choices your help is apreciated. Thanks Owen |
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Extreme Veteran
Posts: 406
Location: Minneapolis, MN | For the inside I'd use PEX...but think about soft copper for the outside stuff. I'm not sure about UV rays and PEX. |
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Expert
Posts: 2958
  
Location: North Carolina | Sunlight degrades just about all plastics used for water lines. If you do use plastic, a coating of paint will slow the degradation from sunlight. |
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Member
Posts: 6
| there has got to be some type of plastic that is more uv stable, a friend told me of a black pipe that grainger sells but on their website they sell tons of black plastic pipe, just not sure what to use but don't think i'll use copper wouldn't the vibrations tear apart the joints??? |
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Extreme Veteran
Posts: 406
Location: Minneapolis, MN | Lots of propane piping is done in soft copper in RV's and horse trailers. |
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Regular
Posts: 69
Location: Washington DC | Most all of the RVs and tailers these days us a PEX type pipe/hose for the water system. the grey and black water tanks use black PVC type pipe. The Black pipe is UV resistant and will not let the sunlight in to assist in the growth of bacteria and will cause issues and smells. Copper could be a bit expensive depending on how much line you have to run but since it is all part of the trailer, if you sweat weld it correctly you shouldnt have any issues with joints pulling apart. |
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Member
Posts: 6
| ok so it looks like you have got me convinced to use soft copper, i didn't know you could sweat them i thought it was only compression fittings? right? or am i thinking funny? I only need to run a foot or two inside past the bulkhead of the trailer so will be copper the whole way. thanks for the info. Owen.
Edited by ofletcher 2010-12-06 10:37 PM
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Extreme Veteran
Posts: 406
Location: Minneapolis, MN | You could solder, go compression or flare. |
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Expert
Posts: 5870
Location: western PA | Solder desn't work well when the pipe is subjected to vibration |
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 Expert
Posts: 2453
Location: Northern Utah | Use the Pex plastic. More resistant to freezing than the copper. |
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Expert
Posts: 2958
Location: North Carolina | Originally written by gard on 2010-12-07 5:06 AM
Solder desn't work well when the pipe is subjected to vibration Working "well" is relative. I've worked with many production machines with soldered copper joints. They operated and vibrated 24/7/365 for many years. More vibration than a horse trailer's life. The key is to support the piping to the frame yet allow differential expansion. OP: Do drain the system for the winter or freeze protect the pipe. Plastic or copper will burst when filled with freezing water. |
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Elite Veteran
Posts: 720
| Not to ask a silly question- but where exactly will your plumbing be exposed to the sun? I don't think I've seen a LQ or travel trailer where this is an issue? If it is all inside- I'd vote for the pex option. Now LP gas plumbing is a different story, but I assume we are talking potable water in this case. |
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Expert
Posts: 3853
Location: Vermont | Another vote for PEX...a plus, in case you have to do future repairs |
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What type of pipe to use for water lines
