Forum Discussion
Old-Biscuit
May 19, 2015Explorer III
Well...........
With trailer that gutted/open I would get rid of that gray Polybutylene pipe and start new with 1/2" PEX and run cold water lines to all fixtures and then hot water lines to fixtures.
Sharkbite fittings can be used or FlairIT (by SeaTech)
Water heater plumbing (this one uses check valve in Hot out---I would NOT use check valve. I would have a shutoff valve in hot out (cold in and bypass---3 valve system)
![](https://sp.yimg.com/ib/th?id=JN.NuXeYo52wIzehGkrHGtbkA&pid=15.1&P=0)
With trailer that gutted/open I would get rid of that gray Polybutylene pipe and start new with 1/2" PEX and run cold water lines to all fixtures and then hot water lines to fixtures.
Sharkbite fittings can be used or FlairIT (by SeaTech)
Water heater plumbing (this one uses check valve in Hot out---I would NOT use check valve. I would have a shutoff valve in hot out (cold in and bypass---3 valve system)
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