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Old 03-21-2010, 10:44 PM   #1
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low water pressure

I just hooked up the water in my 7390 today for the first time and 1/2 filled the tank and then turned the valve to city water. When I turned on the water,it just didn't seem to have a lot of pressure,so I turned the faucet off and turned the pump on and there wasn't much pressure..
Any ideas???
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Old 03-22-2010, 12:28 AM   #2
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If you have some water filter check if they are clean's
it's happen to mé
Andrec
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Old 03-22-2010, 02:45 AM   #3
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Check for a kinked hose(s) behind the control panel, I had a kinked hose when trying to fill the water tank and pulled my panel off and there was a hose bent which had stopped the flow of water.
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Old 03-22-2010, 06:39 AM   #4
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Remove the aerator from the faucet and see if that helps.
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Old 03-22-2010, 08:26 AM   #5
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Quote:
Originally Posted by bigdog View Post
... I turned the faucet off and turned the pump on and there wasn't much pressure..
Any ideas???
Define "much pressure", The pump won't have as much as the shore connection.
If it is barely running, are you sure the pump is primed?

Harold
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Old 03-22-2010, 09:19 AM   #6
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When I said I turned the faucet off,I meant the outside water.
By panal,do you mean the plastic part? I hope.
Heck,now I've got to see if there is an inline filter somewhere. I did find the one under the sink for the drinking water spigot and have to figger out how to change that one as it's all the way in the back corner under the sink..
Not worried about the aereator 'cuz the DW says we're getting pretty new faucets as these are gross and even tho she says we,you know who's gonna wind up paying for them.
Now I've got to figger out why the bathroom shower drain is slow. I bought one of those 2' strips of plastic with barbs on it that you stick down the drain like a snake and it's basically for hair. Does anyone put drain cleaner down their drains.???
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Old 03-22-2010, 09:20 AM   #7
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Usually (If you have a regulator) the pump will have more pressure than the shore connection... IT should... And if you don't have a regulator... Sooner or later you will wish you did.

Fact: The plumbing in my motor home is rated 150PSI
Fact: The pressure guage at the park faucet is reading 90 PSI
Fact: The seals in the toilet flush valve are only rated for SIXTY PSI.

Now do you see what I' mean by "Sooner or later you will wish you had one? (I do by the way)

And my water filter is only rated to 125 PSI per it's label.

Now, a bit of advice on regulators

I have about half a dozen of them- Give or take one or two

Some are the small 3/4" cylinder jobs, some of those are "Standard" and some high-flow. The standard ones do a good job of regulating pressure but restrict the flow too much (This means when you close and open a hot water faucet (And in some cases a cold) you get a burst of good flow and then a trickle)

Taking a shower.. Well. it's more of a dribble with one of these in line

Now with the HIGH- VOLUME units (Look the same save they have a colored plastic grip on the female fitting) I can ALMOST take a real shower.. These are "Acceptable-JUST" in my book

I have one Sur-Flo RV-type pressure regulator,,,, The one I have is an "inline" but if your rig has a built in pressure regulator.. Same "Guts" exactly.. They took a bulit in, left off the elizabethen collar (Mounting flange) and added a male garden hose adapter to the output (it screws on, can be screwed off too)

I also have a Watts, IN my case it's a 3/4 Inch adjustable, set for about 60--65 PSI (This is a pre-regulator for high pressure parks) I'm using the Sur-Flow and am very happy with it. I recommend the Watts however.. But not the tiny one that many folks recommend.. I'd go with at least a half inch model.. 3/4 is easier to adapt to garden hoses though.
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Old 03-22-2010, 09:36 AM   #8
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National RVs have a built in regulator at the city water fill. 50 PSI if I remember correctly.
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Old 03-22-2010, 10:10 AM   #9
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Water Pressure Regulators are known to go bad.

Watts are the best

http://www.rvwaterfilterstore.com/Pr...Regulators.htm
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Old 03-22-2010, 10:48 AM   #10
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He also has low pressure when on his pump.
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Old 03-22-2010, 10:52 AM   #11
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The pump water pressure would be low anyway
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Old 03-22-2010, 07:05 PM   #12
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I do have a regulator in the hose line,but it dorsn't make any difference in the inside pressure if it's there or not.I also changed from my regular 1/2" hose to the larger one and no difference. My Cougar TT has a lot better pressure that this one.
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Old 03-23-2010, 06:59 AM   #13
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As Richard s suggested check the aerators. even if you are going to change faucets eventually, solving the problem now would be nice.The aerators are a fine screen that clogs up easily.
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Old 03-23-2010, 12:44 PM   #14
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I have found low flow is caused by the restrictors placed within each faucet, not the aerator. I took a little work discovering what part of the kitchen wand had to be removed, but my flow is comparable with brick and stick houses. BTW when you use the internal pump does it cycle on and off? If it does there is a restriction. I am not sure what the pump output pressure is, I am guessing around 60PSI which should provide good flow.

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