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Old 09-30-2011, 04:51 PM   #1
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Question Low water pressure

Hi all,
We have our 5th wheel out for it's maiden voyage, a 2001 Forest river 38. The water pressure is very low on everything. I have a pressure gauge and it shows 55 # coming through the hose but the shower just trickles. I replaced the shower head but it didn't help. I took out the back pressure valve in the intake. Is there some valve I can't find or somewhere where it could be plugged up?

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Old 09-30-2011, 04:56 PM   #2
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Do you have a valve to switch from your water tank to city water? If not, check to see if your city water inlet has a small screen filter. I've seen those get so clogged that the water flow is virtually blocked.

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Old 09-30-2011, 05:09 PM   #3
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Yep, check all your hose connections up to the RV for the screen filters. They will plug with calcium and/or sediment with great regularity.

If only one fixture is slow running, chances are the aerator in that fixture is plugged up. Disassembly and cleaning is in order.

Also, if you have a water filter, check to ensure that the filter element isn't plugged.

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Old 09-30-2011, 11:18 PM   #4
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There is no valve I can find to switch from city to tank. There are no screens in any of the lines. All the water outlets are running very slow....
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Old 10-01-2011, 07:49 AM   #5
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The Forest River that we use to have had a water filter installed under the cabinet in the kitchen area. If so you can get replacmets at Lowes.
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Old 10-01-2011, 10:29 AM   #6
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Originally Posted by Bubbajohnw View Post
The Forest River that we use to have had a water filter installed under the cabinet in the kitchen area. If so you can get replacmets at Lowes.
I took the filter out and still no difference.
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Old 10-01-2011, 01:38 PM   #7
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Somewhere from the RV Park water feed faucet there is a clog in your hose or somewhere in your RV. You must be a detective to find it and leave no stone unturned. Start at the faucet and check everything and do not assume anything. Start at the faucet and follow the water flow in a very methodical way.
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Old 10-01-2011, 09:28 PM   #8
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If you're using one of the accessory water pressure regulators, intended to protect you from too-high water pressure, that is the first place I would look for a problem or restriction.

If all of the fixtures in the system are affected, the restriction will be between the outside connection and the first fixture. If it were any further along in the system, the first fixture would work fine.
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Old 10-01-2011, 09:46 PM   #9
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I had the same problem with my shower, then as I was reassembling it for the 3rd time I discovered that there was a "twist to shut off" water saving feature in the base of the handle. It's supposed to let you lather up without using much water. Perhaps yours does too?
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Old 10-02-2011, 05:42 PM   #10
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I agree with Kurmudgoen, disconnect your pressure regulator from the rv and see how the water flow out. When I sold my previous rv I let the pressure regulator go with it, and then my new rv came with out one. I purchased a cheape from walmart @ 5 buck and went a whole weekend with very little water presure. I know have an adjustable pressure requlator with a gage, that was the solution for me.

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