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Old 02-24-2014, 02:04 PM   #1
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Water pressure when connected to shore water

1989 SE I have good water pressure for 30 seconds then it declines rapidly to a trickle, shut it off for 5 minutes and same thing.
Does anyone have any idea the cause and more importantly how to fix?
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Old 02-24-2014, 02:08 PM   #2
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Do you have an onboard regulator?
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Old 02-24-2014, 02:20 PM   #3
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you have a restriction in your supply line
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Old 02-24-2014, 02:21 PM   #4
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Have you checked that the select valve it fully turned on?
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Old 02-24-2014, 02:23 PM   #5
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Kink in the line?
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Old 02-24-2014, 02:24 PM   #6
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Be sure the bypass valve is positioned correctly and not dead-heading into your tank. The other thing I would look at would be the check valve and screen where your input water line connects.
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Old 02-24-2014, 02:25 PM   #7
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older model Country Coach and cannot find any valve. Hose connects in the panel where the electricity connects. Connection has a removable plug to take out to connect hose.
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Old 02-24-2014, 02:29 PM   #8
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Joe in the cabinet where you hook up the hose you have a lever (valve) that diverts the water into your holding tank or into the water pipes directly. That is what you need to find. Can you fill your H2O tank?
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Old 02-24-2014, 02:31 PM   #9
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Hi joecpayne,
Do you have a water filter between the shore delivery point and the faucet your trying to use. If so, remove the filter and see if the PSI improves. If it improves, one needs to purchase a new filter. Consider purchasing several filters. They do not last very long.
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Old 02-24-2014, 02:33 PM   #10
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Sounds like the built in water pressure regulator is bad??? I assume it's has one on the coach rather than a add on.
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Old 02-24-2014, 02:40 PM   #11
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The comment about pressure regulator jogged my thought process. Prior owner had permanently installed a regulator, covered it with insulation and duct taped it. I cut the insulation and duct tape and found the pressure regulator. Removed it and every thing works great.


THANKS THANKS THANKS THANKS
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Old 02-24-2014, 03:22 PM   #12
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Here is the problem with pressure regulators.. First, they need to be at the PARK end of the hose, so they can protect the hose, Where I am parked just now park pressure can hit OVER 100 PSI and has been known to blow the ends off hoses.

Second regulators come in basically 3 or 4 sizes.

1: Standard: This is a brass or plastic cylinder 3/4 inch (About) in diamater male and female hose ends .. RESTRICTS flow so you open the faucet you get full 45-55 PSI (Whatever it is set at) for about one tablespoon worth of water then it starts to drop to a trickle. I give it a 2

2: HIGH FLOW (or High capacity) As above but with a bright plastic grip on the female end or, in the case of Camco, wings on the plastic body.

See above comments, up it to 3 TBL. I give it a five

Sur Flo (A Watts subsidary) this is the standard "installed at the factory" regulator On a scale of 10 it rates between 8 and 9.

Watts 1/2 inch or larger Whole house type, This is a brass assembly has a bell housing with a bolt sticking out of it to adjust the pressure.. Mine is 3/4 inch but 1/2 should do the job.. The smallest one they sell, is too small, but the 2nd smallest will work well.

Valterra also sells an adjustable which is in the same class.

I give them a 10 or 10+ Mine is damaged, I am trying to fix it, and will sooner or later, but as of yet have not gotten lucky.

NOTE I have all the following for testing
Standard, High-flo, Sur-Flo and the aforementioned Watts.
The Sur-flo is currently in the line before the hose but... For other reaaons Im using only tanked water and using the hose just to refill the tank.
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