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Old 06-06-2018, 12:51 PM   #1
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1994 36' Classic 36
North Charleston , South Carolina
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pex sizes

So...with my tiny Bubble.....should I be using tiny Pex?
I am wondering if 1/2" is necessary for the Caravel or do other restorers use 3/8" Pex and is there any savings to be realized?

Maybe the 3/8" fittings cost more....I dont know

feedback please
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Old 06-06-2018, 01:04 PM   #2
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My last trailer had 3/8 inch pex and i had no issues with flow or pressure. 1/2 inch fittings and lines seem to be easier to find.
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Old 06-06-2018, 01:15 PM   #3
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1991 25' Excella
2011 19' Flying Cloud
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My 2004 Lance cabover camper was plumbed in 3/8" pex and worked fine.

You could go either way, 1/2" or 3/8" but I would do it in 1/2" myself.

Only up side to 3/8 I could see is if the water heater is any distance from the fixtures you will see shorter waits for the hot to arrive at the fixture since there is less cold water to purge.
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Old 06-06-2018, 01:34 PM   #4
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1949 18' Trailwind
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3/8 Better for Boondocking

We use 3/8 on our trailers because we build them to boondock and don't want to waste water waiting for the hot to arrive. They also work well with our low pressure on-demand Excel water heaters. Another plus is that it's easier to route 3/8 lines in the smaller trailers - we have a Bubble, a Caravel, and are building a mini Wee Wind from a smashed '47 Liner.
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