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12-10-2017, 07:40 AM
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#15
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Member
Join Date: Oct 2017
Location: Benton, KY
Posts: 71
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When I am hooked up to a water line I always use a water pressure regulator with a guage just in case their pressure is too high.
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12-10-2017, 07:42 AM
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#16
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Member
Join Date: Oct 2017
Location: Benton, KY
Posts: 71
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The water pressure at the kitchen sink is horrible. I will check those filters at the sink today.
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12-10-2017, 12:28 PM
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#17
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Senior Member
Join Date: Apr 2015
Location: Rogers, AR
Posts: 2,869
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Hook a pressure gage up to your water system, turn the pump on and see what the pressure is. Your pump is probably rated at 55psi, if it isn't over 50 on the gage, then turn it up to at least 50psi. Two screws on the bottom of the pump, one for cut off pressure, one for by-pass pressure. Cut off pressure must be higher than by-pass pressure.
If you also have weak pressure hooked up to city water, most likely a blockage in the water system, go to the filters first.
Do all faucets have weak pressure or just certain ones?
Water pressure regulators are notorious for restricting water flow volume in addition to pressure. I have two pressure regulators in parallel to provide good volume, but restrict pressure when needed. Very seldom use it.
__________________
2019 Fleetwood Discovery LXE 40M w/2021 Equinox
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12-10-2017, 04:46 PM
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#18
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Senior Member
Join Date: May 2009
Location: Mariposa, CA
Posts: 4,041
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Quote:
Originally Posted by drbwilson
If I replace the water pump with a larger horsepower one wont that give us a higher water pressure?
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Yes. I switched to a Remco 55AquaJet ARV which draws 10 amps and is a 5-chamber pump that provides 60 psi @ 5.3 gpm.
Here's how it compares to my old ShurFlo (which I still have as a spare):
__________________
2003 - 2010: 2004 35' National RV Sea Breeze LX 8341
2010 - 2021: 2001 41' Newmar Mountain Aire 4095
2021 - ???? : 2001 31' National RV Sea View 8311
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12-10-2017, 06:34 PM
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#19
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Member
Join Date: Oct 2017
Location: Benton, KY
Posts: 71
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Cool. Thanks.
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12-10-2017, 06:36 PM
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#20
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Member
Join Date: Oct 2017
Location: Benton, KY
Posts: 71
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Did you change out anything besid s the pump? Fuses or anything.
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12-10-2017, 06:40 PM
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#21
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Member
Join Date: Oct 2017
Location: Benton, KY
Posts: 71
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Quote:
Originally Posted by alank
Hook a pressure gage up to your water system, turn the pump on and see what the pressure is. Your pump is probably rated at 55psi, if it isn't over 50 on the gage, then turn it up to at least 50psi. Two screws on the bottom of the pump, one for cut off pressure, one for by-pass pressure. Cut off pressure must be higher than by-pass pressure.
If you also have weak pressure hooked up to city water, most likely a blockage in the water system, go to the filters first.
Do all faucets have weak pressure or just certain ones?
Water pressure regulators are notorious for restricting water flow volume in addition to pressure. I have two pressure regulators in parallel to provide good volume, but restrict pressure when needed. Very seldom use it.
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Weak pressure throughout but really bad at kitchen faucet.
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12-10-2017, 07:16 PM
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#22
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Senior Member
Join Date: Mar 2017
Location: Zebulon, NC
Posts: 5,211
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If you haven't already, remove the flow restriction to the faucet. Also, check for kinked hoses under the sink, especially if you have the hose sprayer type. The weight that is used to hold the sprayer into the neck can be in the wrong place and create a worse restriction.
__________________
Kelly and Jerry Powell with Halo (Lethal White Aussie), Nash the Rat Terrorist, and now Reid, the "Brindle we have no idea puppy"
2020 Grand Design Solitude 390RK-R
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12-10-2017, 07:22 PM
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#23
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Member
Join Date: Jun 2016
Posts: 56
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When we got our new coach from the dealer earlier this year the guy was showing us around and the water pressure from the kitchen was horrible. He said "oh that's common" and wiggled the hose underneath, and it fixed the problem.
Our kitchen faucet has a pull-out faucet so there is an "extension hose" for it under the counter, with a ring-style weight on it to make the hose retract nicely when you put the pull-out back. Turns out the ring was pinching the hose and preventing flow, and rearranging the hose under the sink just helped free up the flow.
Something else to check out
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12-10-2017, 10:06 PM
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#24
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Member
Join Date: Oct 2017
Location: Benton, KY
Posts: 71
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Quote:
Originally Posted by alank
Hook a pressure gage up to your water system, turn the pump on and see what the pressure is. Your pump is probably rated at 55psi, if it isn't over 50 on the gage, then turn it up to at least 50psi. Two screws on the bottom of the pump, one for cut off pressure, one for by-pass pressure. Cut off pressure must be higher than by-pass pressure.
If you also have weak pressure hooked up to city water, most likely a blockage in the water system, go to the filters first.
Do all faucets have weak pressure or just certain ones?
Water pressure regulators are notorious for restricting water flow volume in addition to pressure. I have two pressure regulators in parallel to provide good volume, but restrict pressure when needed. Very seldom use it.
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Great info. I will do what you recommend.
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12-10-2017, 10:09 PM
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#25
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Member
Join Date: Oct 2017
Location: Benton, KY
Posts: 71
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Quote:
Originally Posted by ThePowells
If you haven't already, remove the flow restriction to the faucet. Also, check for kinked hoses under the sink, especially if you have the hose sprayer type. The weight that is used to hold the sprayer into the neck can be in the wrong place and create a worse restriction.
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I will check. It is one that extends out to spray off dishes.
Quote:
Originally Posted by alank
Hook a pressure gage up to your water system, turn the pump on and see what the pressure is. Your pump is probably rated at 55psi, if it isn't over 50 on the gage, then turn it up to at least 50psi. Two screws on the bottom of the pump, one for cut off pressure, one for by-pass pressure. Cut off pressure must be higher than by-pass pressure.
If you also have weak pressure hooked up to city water, most likely a blockage in the water system, go to the filters first.
Do all faucets have weak pressure or just certain ones?
Water pressure regulators are notorious for restricting water flow volume in addition to pressure. I have two pressure regulators in parallel to provide good volume, but restrict pressure when needed. Very seldom use it.
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12-10-2017, 10:11 PM
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#26
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Member
Join Date: Oct 2017
Location: Benton, KY
Posts: 71
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Quote:
Originally Posted by vmallet
When we got our new coach from the dealer earlier this year the guy was showing us around and the water pressure from the kitchen was horrible. He said "oh that's common" and wiggled the hose underneath, and it fixed the problem.
Our kitchen faucet has a pull-out faucet so there is an "extension hose" for it under the counter, with a ring-style weight on it to make the hose retract nicely when you put the pull-out back. Turns out the ring was pinching the hose and preventing flow, and rearranging the hose under the sink just helped free up the flow.
Something else to check out 
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Probably part of the problem. Thanks.
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12-11-2017, 12:49 AM
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#27
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Senior Member
Join Date: May 2009
Location: Mariposa, CA
Posts: 4,041
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Quote:
Originally Posted by drbwilson
Did you change out anything besides the pump? Fuses or anything.
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Nope. My previous pump was already connected to a 10A fuse.
__________________
2003 - 2010: 2004 35' National RV Sea Breeze LX 8341
2010 - 2021: 2001 41' Newmar Mountain Aire 4095
2021 - ???? : 2001 31' National RV Sea View 8311
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12-11-2017, 11:21 AM
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#28
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Member
Join Date: Mar 2015
Location: Variable with temperature
Posts: 50
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Quote:
Originally Posted by drbwilson
Hello everyone. We recently purchased our first motorhome. It is a 2017 Winnebago 36z Sightseer. The water pressure is very week if we are hooked up to a campground with low pressure or if we are boon docking. If I replace the water pump with a larger horsepower one wont that give us a higher water pressure? Thanks everyone.
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We have the sister unit from Itasca, 33c. No problem with water pressure in either mode with over 200 nights in it this year. Suspect a blockage or check valve not open fully. Time for warranty work to check it out.
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