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Old 06-03-2018, 08:17 PM   #1
Junior Member
 
Brand: Thor Motor Coach
Model: Miramar 34.4
State: Colorado
Posts: 15
THOR #11850
Check Valve issues

I have a 2017 Miramar. When I use the city water option some water bypasses the pump and slowly fills the tank. Believe it is a check valve issue. Is that a difficult/costly repair?
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Old 06-03-2018, 09:02 PM   #2
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Brand: Thor Motor Coach
Model: Hurricane 31S
State: Texas
Posts: 1,519
THOR #6411
You have three options: replace the entire pump, replace the valve head on the current pump or install a check valve in the water line just after the pump. New pumps run $75 to $200 depending on the brand and max flow/pressure. Pump heads are $12 to $35 but take some what longer to install. Pump installation will take 30 minutes to two hours depending on where the pump is located. Labor will cost $75 to $150 an hour. A mobile tech will usually be the cheapest and fastest. Lastly you can install a check valve near the pump outlet. This can be easy or hard depending... On my coach, the check valve was $9.50. The parts need to install the check valve $19 (I have my own PEX tools). Time was 2.5 hours. Your results will vary.
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2016 Hurricane 31S
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Old 06-03-2018, 09:27 PM   #3
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Brand: Thor Motor Coach
State: Texas
Posts: 166
THOR #8139
Greetings and welcome

This problem is reported often!

A lot of people report problem solved by.

Making sure the pump is off then open and close a faucet to relieve the pressure
then turn the city water on.
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