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Old 05-17-2019, 07:23 AM   #1
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Fresh Water Tank Overflowed

Got up this morning and my fresh water tank was overflowing at the fill site. Was hooked up to city water. Have a 2018 2410WS Forester. No problem last night when I took the dog out.
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Old 05-17-2019, 07:44 AM   #2
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Turn city water off ,relieve pressure in the system. Turn on water pump and let water run in a sink for a minute then shut the pump off. This should reset the back flow check valve. Turn city water back on. This happens a lot.
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Old 05-17-2019, 07:53 AM   #3
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Quote:
Originally Posted by A32Deuce View Post
Turn city water off ,relieve pressure in the system. Turn on water pump and let water run in a sink for a minute then shut the pump off. This should reset the back flow check valve. Turn city water back on. This happens a lot.
Thanks I will give this a try!.
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Old 05-17-2019, 07:58 AM   #4
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Had it happen to me, found the fix on here and it worked.
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Old 05-17-2019, 06:53 PM   #5
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Thanks that fixed it! Love this forum. Thank you for your quick response this morning!
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Old 05-17-2019, 06:56 PM   #6
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Don't run the water pump when connected to city water as this can sometimes cause this issue.
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Old 05-17-2019, 06:58 PM   #7
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10- 4 ! Won’t do that.
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Old 05-17-2019, 09:53 PM   #8
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Since the cause is running the pump when city water is on and it's so easy for that to happen when others are in the trailer it might be a good idea to install a check valve ahead of the pump.

Valterra makes one that merely screws on the male threads of the inlet filter and then the barb fitting that came off the filter screws onto the check valve.

About $12 at Amazon




If installing one just make sure the threads are well sealed so air isn't sucked in. Install one and no more worries about overfilling the tank ----- period.
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Old 05-18-2019, 06:37 AM   #9
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Thanks I will look into that!
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Old 05-18-2019, 09:22 AM   #10
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Also, are you using a good water pressure regulator? High city water pressure can overcome a perfectly good working check valve in the water pump.
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