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Old 12-05-2020, 05:01 PM   #1
Join Date: Jun 2020
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Low Water Pressure

When connected to city water the inside water pressure starts off good then drops. It drops fast. When using tank water and the pump, the flow rate is fine. I checked/cleaned all the aerators and filters on the faucets. It's not that. The pressure regulator is at 55/psi. All the screens looked cool. I measured the flow rate from the hose and filter which was 5.6/gpm. Inside the coach, I removed the cold water hose from the faucet, using that as the source to test the flow rate in the coach got 1.1/gpm. Got about the same from the faucet when I reconnected the cold water. Taking into assumption that modern faucets flow at 1.8/gpm I don't expect the 5.6/gpm. Would be nice though. Where am I loosing the pressure? How do I fix it? It would be nice to take a shower and actually get wet in a timely manner.
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Old 12-05-2020, 05:08 PM   #2
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Did you check the screen in your water hose. I would also try another hose, may be a problem with inner liner.
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Old 12-05-2020, 05:49 PM   #3
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Remove the pressure regulator where your city water hose connects and try again.
If that doesn't fix it then check the gate valve that switches from city to onboard tank/pump.
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Old 12-05-2020, 07:59 PM   #4
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Originally Posted by vito.a View Post
Remove the pressure regulator where your city water hose connects and try again.
If that doesn't fix it then check the gate valve that switches from city to onboard tank/pump.

The hose connection in the wet bay is often a cheap pressure regulator/check valve combination, or simply a check valve. A failure of either type can drastically reduce water flow. It may be located behind the facade of the wet bay, just behind the hose connector.
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water, water pressure

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