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Old 10-17-2020, 02:45 PM   #1
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1983 31' Excella
Big Bear City , CA
Join Date: May 2020
Posts: 3
Running New PEX

Hey there,
So as I am planning my subfloor install I'm trying to plan for all plumbing that needs to be ran. Tank/pump are on drivers side while my kitchen sink/bathroom are on the curb side of the trailer. If I remember correctly, there was a water line that went under the subfloor over to the shower sink area. I was hoping for some feedback on ways to avoid running any plumbing under the subfloor. My initial thought is to run the pex through the closet around the bed frame and the back of the trailer to get to the bath / kitchen sink / water heater. Any thoughts / feedback would be amazing! thanks yall.
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Old 10-17-2020, 04:03 PM   #2
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1966 22' Safari
1955 22' Flying Cloud
Fredericksburg , Texas
Join Date: May 2015
Posts: 1,583
We have the Wirsbo PEX and used the expander tool. In our 66 we ran the PEX from the tank at the curbside corner all the around to the curbside sink. Not a problem. I did add isolation valves at each point that needed water in the event I ever had to shut something off. I would just have all joints and valves accessible.
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Old 10-17-2020, 07:15 PM   #3
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1986 34' Limited
1975 27' Overlander
Conifer , Colorado
Join Date: Jun 2009
Posts: 6,132
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This is one of the joys of a mid bath when the galley is on the other side of the aisle. I replumbed our 86 Limited 34' which did in fact have hot and cold under the fresh water tank. The water pump is in the wardrobe down the aisle from the galley. The water heater is in the rear of the trailer as well as city water inlet.

If my trailer was gutted, I might have run new lines along the wall around the rear bedroom. I would want a strong water pump to supply the shower in the bath.

I thought it was unfair Airstream would run plastic plumbing lines under the subfloor and above the fresh tank. Mine developed a leak and I had a major project replumbing in PEX.

I just replumbed my friend's 76 Sovereign 31 foot and we ran plumbing around the rear bath and on up to the curb side galley. No problem with operation. Water heater and city water inlet are on the street side.

David
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Link to my 1975 Overlander Improvement Journal:
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https://www.airforums.com/forums/f221...ct-202081.html
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