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Old 07-30-2016, 09:55 PM   #1
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Water leaking under RV

We arrived at the RV park on the first day of our vacation. After hooking up electrical and water., we noticed leaking water coming or pouring out of the bottom. We have a 2008 Berkshire 390bh. The only thing we can think that we did wrong - were still newbies- is that the water pump was still on. Turned the water pump off and just tried to fill the fresh water tank. Still leaking. We're out of town in Tampa and have no idea what to do. Now we can't take showers etc Please help! Thanks
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Old 07-30-2016, 10:00 PM   #2
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Well of course you could have a leak in the plumbing any were. It would not be your water pump. First check that your low point trains are closed. Second check that your water heater pop valve is not tripped. Have you used the camper this summer since you may of had it winterized?
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Old 07-31-2016, 07:04 AM   #3
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Is it a drip or a rush of water? I had a small drip once turned out I had a leak at the water inlet, hose leaking had to redo, water just followed along somewhere until it had a place to drip out but did drive me crazy worrying it was something worse. Good luck and keep us posted.
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Old 07-31-2016, 01:14 PM   #4
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Yes we used the rv in early summer and have had it plugged up in storage since then. The fresh water tank will not fill fast; meanwhile the water is coming from somewhere. If we run on city water with the pump on same exact problem. The area under the tanks fill with water. Of course all RV repair shoos are closed today so hope to get it in somewhere tomorrow to get looked at.thanks!
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Old 07-31-2016, 02:26 PM   #5
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Have you confirmed that your fresh water tank drain and low point drains are closed? If so you have a disconnect or broken pipe.
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Old 07-31-2016, 03:52 PM   #6
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Thanks for the reply - we are really new to the Class A RV, so we don't know how to check. We bought the RV used and so we have no manual. It's a class A 2008 Berkshire 390BH
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Old 07-31-2016, 04:02 PM   #7
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You should not have the water pump on when connected to city water.
Turn off water pump
Shut off city water.
Open a faucet
Turn on water pump
Let water run foe a minute or two
Shut off water pump
Close faucet
Turn city water.

You may have had a stuck valve in the pump back flow valve
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Old 07-31-2016, 04:29 PM   #8
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all good suggestions.
x2
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Old 07-31-2016, 08:04 PM   #9
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Hello,
I had a leak once had a leak from my shower/ bath sink grey tank. The pipe for the vent was not sealed and water leaked when over full.
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Old 07-31-2016, 08:24 PM   #10
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Quote:
Originally Posted by Flybob View Post
You should not have the water pump on when connected to city water.
Turn off water pump
Shut off city water.
Open a faucet
Turn on water pump
Let water run foe a minute or two
Shut off water pump
Close faucet
Turn city water.

You may have had a stuck valve in the pump back flow valve
Is that a blanket statement, "You should not have the water pump on when connected to city water."? I am a newbie to TT's and a few of the campsites we have been to have so low pressure, we would fill up the tank, turn on the pump and use both the city water and the pump as a way to get higher pressure, Is this a bad idea? I am assuming, that is how you get a stuck back flow valve? Thanks!
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Old 08-01-2016, 06:29 AM   #11
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We do the same thing. No problem at all. Never had a issue with using both. Often just turn it on for showers in the morning.
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Old 08-01-2016, 10:47 AM   #12
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Update - checked around Tampa for RV repair and no one has opening to check it out. Headed directly to campground next week so were panicking because we won't have water. Any suggestions on how to check to see what or where or why the water is leaking? Again - the fresh water tank won't fill (or VERY SLOWLY) while water is hooked up to water at RV park. Move hose to city water and turn on water pump - have water inside rv but water is pouring out of overflow valve. Looked under RV and just see where water is dripping onto the black tanks then to the floor then out the overflow valve. Any suggestions would be appreciated!
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Old 08-01-2016, 10:57 AM   #13
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Find a "Mobile RV Technician" that will come to your location.

Here's a Google link for you"

http://www.yellowpages.com/tampa-fl/mobile-rv-repair
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Old 08-01-2016, 10:58 AM   #14
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We are Good Sam members but called them and they said that their mobile technician does not cover water issues.
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Old 08-01-2016, 11:00 AM   #15
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Originally Posted by pigletat100acres View Post
Update - checked around Tampa for RV repair and no one has opening to check it out. Headed directly to campground next week so were panicking because we won't have water. Any suggestions on how to check to see what or where or why the water is leaking? Again - the fresh water tank won't fill (or VERY SLOWLY) while water is hooked up to water at RV park. Move hose to city water and turn on water pump - have water inside rv but water is pouring out of overflow valve. Looked under RV and just see where water is dripping onto the black tanks then to the floor then out the overflow valve. Any suggestions would be appreciated!
What do you mean the "overflow valve?" If you are referring to the tank overflow valve, then the tank may be full and you have a bad check valve in the water pump. If this fails, the city water will be able to flow backwards through the pump and will fill the water tank...and then begin to overflow the water tank. This is not an uncommon occurrence and sometimes dirt or other debris can clog the valve and keep it from closing under the city water pressure.

running water through the pump "may" clear the debris if that is all it is.
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Old 08-01-2016, 11:05 AM   #16
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We are Good Sam members but called them and they said that their mobile technician does not cover water issues.
Check out the "link" in my post above!!!!!
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Old 08-01-2016, 11:28 AM   #17
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Is that a blanket statement, "You should not have the water pump on when connected to city water."?
Yes It may occasionally work, but you should only use one of the two systems. If the pressure is too low, fill the water tank and use the water pump.
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Old 08-01-2016, 12:06 PM   #18
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Using both won't hurt anything, but it will drain your tank eventually. If the city water has enough pressure the pump won't come on at all since it has a pressure switch.
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Old 08-01-2016, 05:34 PM   #19
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Happened to me just 4 days ago. We're 2 months into our 5 month trip out west here in Colorado and did the usual hookup of utilities. And water started gushing all over from the bottom. Got lucky. The fitting that you attach the city water had become 'unscrewed' on the inside. So I took out the 3 screws exposing the inside of this fitting and simply retightened it to the nipple on the inside. Problem solved. It also caused some electrical shorts that were immediately remedied once it dried out. I opened up all the underneath hatches and aired out the basement. Turned out my mattress was wet too so we aired that out as well. I guess water sprayed upward. Dodged a big big bullet.
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Old 08-01-2016, 06:13 PM   #20
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Originally Posted by pigletat100acres View Post
Update - checked around Tampa for RV repair and no one has opening to check it out. Headed directly to campground next week so were panicking because we won't have water. Any suggestions on how to check to see what or where or why the water is leaking? Again - the fresh water tank won't fill (or VERY SLOWLY) while water is hooked up to water at RV park. Move hose to city water and turn on water pump - have water inside rv but water is pouring out of overflow valve. Looked under RV and just see where water is dripping onto the black tanks then to the floor then out the overflow valve. Any suggestions would be appreciated!
Again - the fresh water tank won't fill (or VERY SLOWLY) while water is hooked up to water at RV park.
You shouldn't have ANY water going into the fresh water tank while on city water. there is a check valve that keeps the two systems separate.

Move hose to city water and turn on water pump - have water inside rv but water is pouring out of overflow valve.Which overflow valve? Are you sure you are not talking about the fresh water tank fill neck and breather?

Do you know where you fill the fresh water tank?

Looked under RV and just see where water is dripping onto the black tanks then to the floor then out the overflow valve
What is the overflow valve you are talking about hooked to
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