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05-24-2020, 07:25 AM
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#1
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Senior Member
Damon Owners Club Freightliner Owners Club
Join Date: Feb 2019
Location: Minnesnowta
Posts: 398
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Roof top A/C drainage
Woke up with this idea in my head the other day. For us folks with A/C units that simply drain the condensation water on to the roof, how about connecting some PEX tubing to the A/C drain (maybe a problem, haven't checked this) and running it to the nearest plumbing vent? Has anybody done this or thought about it? Possible problems? Would be nice to keep the side of the coach dry and clean!
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Jeff & Kelly
2008 Damon Astoria 3776 PE
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05-24-2020, 07:28 AM
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#2
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Registered User
Monaco Owners Club
Join Date: Mar 2018
Location: Blairsville, GA & WPB, FL
Posts: 3,993
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So you want to introduce the smells from your vents into the RV????
Even with a trap (low spot in the line) it might work in the summer but in the winter when the trap dries out... the smell is back.
Monaco did run drain hoses to under the MH.
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05-24-2020, 07:46 AM
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#3
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Registered User
Monaco Owners Club
Join Date: Apr 2020
Posts: 161
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Uh uh. A hose from the condensation drain to the vent will not provide a path for odors to get into the coach. The condenser coils are physically separated form the evaporator coils (where the air is chilled) and are completely external; and all air conditioner systems only recirculate the air inside the cabins -- in through the air filter, out the registers. The downside will be that all the condensation will go into either the gray water or black water tanks.
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05-24-2020, 08:08 AM
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#4
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Senior Member
Damon Owners Club Freightliner Owners Club
Join Date: Feb 2019
Location: Minnesnowta
Posts: 398
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Quote:
Originally Posted by Ivylog
So you want to introduce the smells from your vents into the RV????
Even with a trap (low spot in the line) it might work in the summer but in the winter when the trap dries out... the smell is back.
Monaco did run drain hoses to under the MH.
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Thanks for the response. Never thought of the gasses being vented into the coach. I would think a natural trap would form when running the A/C like you said. When the A/C is not in use, I would think the gasses would escape to atmosphere with out the fan on to suck them into the coach. Not sure though. Wouldn't be hard to install a ball valve to prevent that.
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Jeff & Kelly
2008 Damon Astoria 3776 PE
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05-24-2020, 08:23 AM
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#5
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Registered User
Monaco Owners Club
Join Date: Mar 2018
Location: Blairsville, GA & WPB, FL
Posts: 3,993
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Quote:
Originally Posted by Urban Hermit
Uh uh. A hose from the condensation drain to the vent will not provide a path for odors to get into the coach. The condenser coils are physically separated form the evaporator coils (where the air is chilled) and are completely external; and all air conditioner systems only recirculate the air inside the cabins -- in through the air filter, out the registers. The downside will be that all the condensation will go into either the gray water or black water tanks.
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Didn’t know the “Condenser coils” which are hot, have the pan for catching the condensation water. Thought the cold “evaporation coils” were the ones that created condensation water. Learn something “new” every day.
PS: when are you going to post your Cat scale weights.
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05-24-2020, 08:30 AM
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#6
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Registered User
Monaco Owners Club
Join Date: Mar 2018
Location: Blairsville, GA & WPB, FL
Posts: 3,993
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Quote:
Originally Posted by Jzack
Thanks for the response. Never thought of the gasses being vented into the coach. I would think a natural trap would form when running the A/C like you said. When the A/C is not in use, I would think the gasses would escape to atmosphere with out the fan on to suck them into the coach. Not sure though. Wouldn't be hard to install a ball valve to prevent that.
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No outside air vent in a RV roof AC unit... all the air is recirculated.
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05-24-2020, 08:33 AM
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#7
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Senior Member
Join Date: Apr 2018
Posts: 672
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Theoretically Ivylog is right. The condensate originates on the evaporator and flows to the condenser side. If water can flow, when there is no water, smelly gasses could go the other way.
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I came into this world with nothing, and I still have most of it left
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05-24-2020, 08:37 AM
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#8
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Senior Member
Join Date: Apr 2018
Posts: 672
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Jzack, why not try it? Worst case, is you have to disconnect hoses. Might try that myself
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I came into this world with nothing, and I still have most of it left
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05-24-2020, 08:45 AM
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#9
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Senior Member
Freightliner Owners Club
Join Date: Apr 2002
Location: Pensacola
Posts: 2,728
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May be a good way to quietly fill your holding tanks...
I just train the AC water to go where I want.. EZE RV gutter
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Hooligan, Pensacola, Fl -U.S. Coast Guard 1956-1985
2016 Thor Siesta Sprinter 24ST diesel -1972 Moto Guzzi
2008 Suzuki Grand Vitara TOAD
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05-24-2020, 08:50 AM
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#10
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Senior Member
Join Date: Apr 2018
Location: North Central Florida
Posts: 830
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I would definitely not want to fill my holding tanks with condensate. But maybe using the PEX line to divert it somewhere you'd rather have it makes sense.
If you are boondocking it could be a source of additional toilet flushing water.
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05-24-2020, 09:03 AM
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#11
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Senior Member
Join Date: Apr 2018
Posts: 672
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[QUOTE=Hooligan;5275718]May be a good way to quietly fill your holding tanks...
Once again, try it if it fills tank, then don't do it anymore. I doubt it would make much difference on holding tanks. Once a/c has been running for a while, it dehydrates coach, and only when you introduce fresh air, ie open a window do you get more moisture
__________________
I came into this world with nothing, and I still have most of it left
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05-24-2020, 09:42 AM
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#12
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Senior Member
Damon Owners Club Freightliner Owners Club
Join Date: Feb 2019
Location: Minnesnowta
Posts: 398
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Quote:
Originally Posted by Dom
Jzack, why not try it? Worst case, is you have to disconnect hoses. Might try that myself
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Thanks, I think I will. At least I'll take a serious look at it when I go up to blow out the coils this spring. If the negatives can be easily mitigated, the positives should make this worth it.
__________________
Jeff & Kelly
2008 Damon Astoria 3776 PE
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05-24-2020, 09:46 AM
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#13
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Senior Member
Damon Owners Club Freightliner Owners Club
Join Date: Feb 2019
Location: Minnesnowta
Posts: 398
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Quote:
Originally Posted by Brob
I would definitely not want to fill my holding tanks with condensate. But maybe using the PEX line to divert it somewhere you'd rather have it makes sense.
If you are boondocking it could be a source of additional toilet flushing water.
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You mean divert it into a water tank? Not for drinking of course, but very interesting for boondocking purposes.....
__________________
Jeff & Kelly
2008 Damon Astoria 3776 PE
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05-24-2020, 11:19 AM
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#14
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Senior Member
Join Date: Apr 2018
Posts: 672
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Quote:
Originally Posted by Jzack
You mean divert it into a water tank? Not for drinking of course, but very interesting for boondocking purposes.....
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Don't know about you, but I'm not running my a/c where there is no power
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I came into this world with nothing, and I still have most of it left
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