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Topic: Is there a way to prevent AC from pooling in the roof? (Read 233 times) previous topic - next topic
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Is there a way to prevent AC from pooling in the roof?
Our AC unit keeps leaving a lot of water on the roof, wondering if anyone has hacked a drain hose or something?
1995 23.5 Rear Lounge
Re: Is there a way to prevent AC from pooling in the roof?
Reply #1 –
I have the same problem with mine.  I’ve considered uninstalling it to re-install it higher, but don’t know if I would solve the pooling problem.
SoCal-Gal  (Tracy)
1991 26.5 RB
Previous 1988 22’ LD Multi plan
Previous 1992 Six-pack Camper
Spare the sealant, spoil the job.
Travelers: Tracy, spouse Anthony, Coton de Tulear, Gabby and parrotlet, Indigo
Re: Is there a way to prevent AC from pooling in the roof?
Reply #2 –
You have discovered what many of us affectionately call 'Lake Newton'. 

Long story short, it's a tradeoff that comes with a roof made from a single piece of aluminum. 

This thread will help catch you up on solutions that have been tried (tilt the coach, add gutters, make sure the cab windows are closed as you drive away):

Water Pooling on the Roof from the AC

Rich


2003 MB
Re: Is there a way to prevent AC from pooling in the roof?
Reply #3 –
Quote from: rich  - 
You have discovered what many of us affectionately call 'Lake Newton'. 

LOL!!

I'm thinking of making a drip pan that connects to a hose or something like that.

Either that or adding gutters. It's really annoying when trying to keep the rv clean
1995 23.5 Rear Lounge
Re: Is there a way to prevent AC from pooling in the roof?
Reply #5 –
The low spot is around the roof A/ and is caused by its weight.
The only to drain it or to keep it from occurring is to park on a slope.
That’s the way it is, welcome to the world of LDs.

Larry
Larry
2003 23.5' Front Lounge, since new.  Previously 1983 22' Front Lounge.
Tow vehicles  2020 Jeep Wrangler Rubicon, 2001 Jeep Cherokee
Photo Collection: Lazy Daze
 
Re: Is there a way to prevent AC from pooling in the roof?
Reply #6 –
Hi Larry;  In my old (not LD) coach, I cut a hole where I wanted an A/C unit, and made a standard 14" vent.  I reinforced the roof from inside the hole, and added 1/2 " plywood between the wood roof and the aluminum roof. Added the electric line, breaker in the panel and a Dometic unit. I had planned to make a drain pan, the size of my 1/2" plywood footprint, and run a drain line inside the bathroom wall, all the way through the floor and have it come out below the coach.  Didn't have the time then. I have a friend with a hydraulic bending brake. I plan to make a stainless sheet pan for my TK and run it through the bathroom (hollow) wall, when I need to replace the A/C next.  RonB  I'll take pictures.
RonB (Bostick) living in San Diego
Original owner of "Bluebelle" a '99 TKB