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11-05-2021, 06:28 AM
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#1
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Junior Member
Join Date: May 2021
Location: Commiforniastan
Posts: 5
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City Filling Freshwater
Hey team,
2021 Outback 335CG.
First time Camper owner, so I’m learning as I go. I noticed when the wife and I took the camper for her maiden voyage of 2 days, that the fresh water tank always seemed to have water in it. So I’d just drain it and not think anything of it. Mainly just assumed that it was a byproduct of a camper.
We stayed in the camper for about 30 days while we waited for our house to become available at a full hook up spot, and then took it to sturgis.
We noticed while at sturgis, with full hooks, that water would flow out of the fresh tank vent after a night of being hooked up, when “city water” was selected. Not full flow, but a trickle. I also checked, and my fresh water tank was full after a night, even though we had never flipped the valve to fill the fresh tank.
Now, I would love to take it back to a dealer or authorized repair location, but I’m in the military and currently using it as my home away from home.
So with that? Anyone know what’s wrong with it? Can I fix it? Is it something I should be concerned with?
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11-05-2021, 06:55 AM
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#2
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Senior Member
Join Date: Aug 2021
Location: Eugene
Posts: 314
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Quote:
Originally Posted by Butters
Hey team,
2021 Outback 335CG.
First time Camper owner, so I’m learning as I go. I noticed when the wife and I took the camper for her maiden voyage of 2 days, that the fresh water tank always seemed to have water in it. So I’d just drain it and not think anything of it. Mainly just assumed that it was a byproduct of a camper.
We stayed in the camper for about 30 days while we waited for our house to become available at a full hook up spot, and then took it to sturgis.
We noticed while at sturgis, with full hooks, that water would flow out of the fresh tank vent after a night of being hooked up, when “city water” was selected. Not full flow, but a trickle. I also checked, and my fresh water tank was full after a night, even though we had never flipped the valve to fill the fresh tank.
Now, I would love to take it back to a dealer or authorized repair location, but I’m in the military and currently using it as my home away from home.
So with that? Anyone know what’s wrong with it? Can I fix it? Is it something I should be concerned with?
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Do you happen to have a picture of your convenience center showing how all of your valves are positioned while on city water?
It sounds like the power fill/city water valve is not closing all the way allowing some water to bypass and go into the fresh tank.
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11-05-2021, 07:21 AM
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#3
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Member
Join Date: Oct 2021
Location: Virginia Beach
Posts: 57
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Another possibility for your potable water tank filling is a faulty or just stuck check valve on the discharge side of your water pump.
One way to try to reset the check valve is to do the following:
- Turn off the city water supply.
- Open a faucet to relieve pressure on the system.
- Turn on water pump and open a faucet to confirm water flow.
- Close faucet
- Turn off water pump.
- Open a faucet to release pressure. Close faucet.
- Turn on/reconnect city water.
This SHOULD reset a sticky check valve.
Good luck,
Joe
__________________
Joe
Current: 2022 Cougar 26RBS
Past: 2020 Rockwood MiniLite 2205s
TV: 2022 Ford F-350 Platinum 6.7 CCSB
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11-05-2021, 12:24 PM
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#4
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Junior Member
Join Date: May 2021
Location: Commiforniastan
Posts: 5
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This is how my connection panel looks
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11-05-2021, 12:25 PM
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#5
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Junior Member
Join Date: May 2021
Location: Commiforniastan
Posts: 5
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Quote:
Originally Posted by Essvar
Do you happen to have a picture of your convenience center showing how all of your valves are positioned while on city water?
It sounds like the power fill/city water valve is not closing all the way allowing some water to bypass and go into the fresh tank.
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That is what I was thinking. My next step was to remove the panel and see if I could get to the valve. Just fear messing something up worse.
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11-05-2021, 01:22 PM
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#6
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Senior Member
Join Date: Jul 2013
Location: Box Elder
Posts: 2,910
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Most likely cause is the check valve in the water pump has debris in it allowing water to flow backwards into the fresh tank. We had that happen some years ago, and solved the problem by installing a check valve in the PEX line on the pressure side of the water pump. Have never had an issue with that since. You might try running the water pump for a while, seeing as you have a full fresh water tank anyway, and maybe the water flow will clear the debris from the valve and fix the problem.
__________________
Bob & Becky
2012 3402 Montana
2012 Chevy 2500HD D/A CC
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11-05-2021, 09:56 PM
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#7
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Junior Member
Join Date: May 2021
Location: Commiforniastan
Posts: 5
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Quote:
Originally Posted by bobbecky
Most likely cause is the check valve in the water pump has debris in it allowing water to flow backwards into the fresh tank. We had that happen some years ago, and solved the problem by installing a check valve in the PEX line on the pressure side of the water pump. Have never had an issue with that since. You might try running the water pump for a while, seeing as you have a full fresh water tank anyway, and maybe the water flow will clear the debris from the valve and fix the problem.
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THIS WORKED! I did a mixture of this and the previous posted suggestion of resetting the valve. Run the pump for a while and then shut it off and cleared the lines. Working like a champ now!
Thanks guys.
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11-06-2021, 05:14 AM
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#8
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Site Team
Join Date: Mar 2011
Location: Gaylord
Posts: 26,997
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Quote:
Originally Posted by Butters
THIS WORKED! I did a mixture of this and the previous posted suggestion of resetting the valve. Run the pump for a while and then shut it off and cleared the lines. Working like a champ now!
Thanks guys.
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You've probably got a FloJet pump. Keystone and other RV builders are notorious for drilling holes in the tanks to make connections. Typically they leave the "drill shards" (plastic shavings) in the tanks. Those shards will migrate to the low point pickup, get sucked up the pump inlet line and into the pump head where they "foul the diaphragm" which also serves as the backflow preventer on newer pumps.
Your fresh water tank has "more fun in store for you the next time a drill shard gets lodged in the pump"..... You'd benefit greatly (and your pump will thank you) if you install an inlet strainer on the water supply line from the tank to the pump. It's a simple "clamp on style" and costs less than $8 from Amazon.
I'd urge you to consider installing one while the pump is still working. It's cheap insurance and even 6 years after buying our trailer, I still find debris in my strainer screen every year when winterizing.....
https://www.amazon.com/Flojet-017403...1%2CB001HKZHIW
__________________
John
2015 F250 6.7l 4x4
2014 Cougar X Lite 27RKS
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