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Old 03-19-2020, 12:51 PM   #1
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1979 31' Excella 500
High Springs , Florida
Join Date: Jul 2019
Posts: 8
Flexible air hose in bathroom?

We are renovating a 1979 Excel 31 foot AS. We have an air vent pipe that needs to be replaced, we would also like to use a very flexible hose instead of the hard one that is in there. The hose is 1 1/2". What are some thoughts on this. The reason being, the hard pipe will interfere with our new bathtub placement. If we could use a flexible hose it would make it easier to do. This pipe or hose is for air flow only. Hooked behind the bathroom sink and goes up and out the wall, near the ceiling.
Thanks so much

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Old 03-19-2020, 12:58 PM   #2
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Jeffersonville , Kentucky
Join Date: Feb 2017
Posts: 131
I used a flexable plastic pipe for both my front and back vent
So far no issues. it is just air.

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Old 03-19-2020, 02:05 PM   #3
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1964 22' Safari
modesto , California
Join Date: Jul 2010
Posts: 899
I used a flexible pipe for my grey tank vent as well. No issues at all. Properly sealed and clamped you should be OK. These are only vent pipes and do not have liquid passing through them. However, what I did was to go straight up with ridged ABS (back pipe) from the highest TEE then connect the flex at that point, then to the top vent pipe also ABS sticking out the top. So two transitions (in my case). Maybe a photo, here you go.

Sorry! It's not sideways in my photo's. I guess you have to tilt your head . Hope it helps

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Old 03-19-2020, 05:13 PM   #4
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2000 25' Safari
1999 34' Excella
Davidson County , North Carolina
Join Date: Aug 2006
Posts: 4,151
I would use flex if I need to.

Some options that come in 1.5":
wet-dry vacuum hose
pool vacuum hose
spa hose
water filler hose (same as the fresh water tank filler)

ps: don't reduce the size of the hose, or the tank will drain slower than it does now.
2014 Silverado LTZ 1500 Crew Cab 5.3L maximum trailering package
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Old 03-20-2020, 11:42 AM   #5
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2004 25' International CCD
Vancouver Island , British Columbia
Join Date: Apr 2018
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Sounds like a workable plan!
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