Sprayed Foam Insulation Underneath Trailer plus 12V water tank heating pads - Page 4 - Escape Trailer Owners Community

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Old 09-22-2012, 11:00 AM   #31
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Re: Sprayed Foam Insulation Underneath Trailer plus 12V water tank heating pads

Quote:
Originally Posted by dbailey
I have a question about the external shower hookup...

I understand that the spray insulation doesn't protect the hookup. But like a hose attachment on a house, freezing might or might not be a problem depending on the location of the shutoff valve relative to the wall insulation. On a house tap, there are two solutions for freezing weather -- you either have a separate shut-off value inside the insulation and shut this value while leaving the outside valve open, or you have a special valve that is turned on/off from the outside but the valve itself is actually located inside your house insulation.

So what's the situation on the external shower hookup? Is there a separate shut-off valve inside the wall of the trailer so that you don't need to worry about the pipe cracking, or is the valve itself inside the insulation, or is an external shower hookup just a bad idea if you plan to camp in below-freezing temperatures?

Thanks for the info...
We had Reace install separate shut off valves just inside the closet right behind the outside shower box.
This could also be done after as I believe the pipes go up through the closet regardless.

Hope this helps
Doug
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Old 09-22-2012, 11:51 AM   #32
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Re: Sprayed Foam Insulation Underneath Trailer plus 12V water tank heating pads

The outside shower is about two feet higher than the pump that feeds water to it, so I expect that it drains every time you shut the pump off. I would remove the shower head and hose though, if freezing.

baglo
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Old 09-22-2012, 11:54 AM   #33
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Re: Sprayed Foam Insulation Underneath Trailer plus 12V water tank heating pads

Excellent, thanks. Always good to know a problem has already been considered and solved.

Baglo: I wouldn't assume that without a closer look at the pump and plumbing. If there's a back-flow preventer on the pump, and no other taps lower than the shower, it might hold the water. Certainly removing the outside fittings will help it drain, though.
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Old 09-22-2012, 11:56 AM   #34
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Re: Sprayed Foam Insulation Underneath Trailer plus 12V water tank heating pads

Good point.

baglo
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Old 04-13-2013, 08:15 AM   #35
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We have the foam and heater pads.

I installed a permanent spray nozzle thing in the black water tank and had to scrape a bit of foam away in order to get at the tank, then I replaced the foam after. It wasn't a problem at all.

I've only used the heater pads once. I had the trailer all ready for our departure, including having the fresh water tank filled up. Then we had to postpone our trip for a week so I turned on the heater pads - and nothing froze. It was about -10C at night and just around freezing during the day. The trailer was plugged into our house so I had a small electric heater running in it as well. There were three points I was worried about - the outside shower, the fresh water tank drain tap, and the "low water drain plug." Normally I wouldn't have had the outside shower on at all so there wouldn't have been any water in those pipes, but I left it open when I was checking the plumbing after the winter so it was fully primed. The other two points will always be exposed and full of water though. Anyway - everything survived the week no problem.
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