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12-24-2023, 04:45 PM
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#1
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Junior Member
Join Date: Dec 2023
Posts: 3
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Low water pressure
My parents got a used RV from someone and it has water flow issues to all the faucets, shower and toilet. The water pressure is weird sometimes when I turn on the faucet the water pressure is strong for a little then it dwindles to basically nothing sometimes it actually stops spitting out water. I saw a lot of suggestions on what it could be but I can't find most of the stuff on this RV all I know is that it's a Openroad 357rl3s-5 there's not much about this rv model I don't know what to do
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12-24-2023, 05:16 PM
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#2
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Senior Member
Join Date: Nov 2015
Posts: 28,585
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Are you using City Water or the On-board pump?
Do you have same low pressure issues with one or other?
Is low pressure Hot and Cold?
City water inlet assembly check valve or 'FILL' position (if so equipped)
Screen for inlet can be clogged, check valve clogged or failed
FILL position....still open/leaking thru
Pump.......low water level in fresh water tank, air leak on suction side, failing pump
Low pressure just hot...water heater outlet check valve
*Could be problem with Cold inlet check valve....is WH Tank full?
(Winnebago likes to install check valves on Cold In & Hot out)
__________________
I took my Medication today. HAVE YOU?
Dodge 3500 w/Tractor Motor
US NAVY---USS Decatur DDG-31
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12-24-2023, 06:34 PM
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#3
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Junior Member
Join Date: Dec 2023
Posts: 3
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I'm using city water, the low pressure is on both, and the pump doesn't seem to do much I doubt much water is in the tank. The water pressure coming from the lines is strong, I thought it mightve been my water pressure valve so I tried to connect the hose directly to the RV just to see and nothing no water anywhere I left my faucets open and let all the water drain. Then when I connected the water pressure valve back to the RV connection instantly the faucet was going full force then after a while it died back down
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12-24-2023, 07:46 PM
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#4
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Senior Member
Join Date: Nov 2015
Posts: 28,585
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Sounds like the city water inlet assembly Check Valve
__________________
I took my Medication today. HAVE YOU?
Dodge 3500 w/Tractor Motor
US NAVY---USS Decatur DDG-31
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12-24-2023, 08:26 PM
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#5
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Junior Member
Join Date: Dec 2023
Posts: 3
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Where would I find that
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12-25-2023, 08:58 AM
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#6
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Senior Member
Join Date: Nov 2015
Posts: 28,585
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Quote:
Originally Posted by Edwin132
Where would I find that
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Where you connect to hose to...that is the city water inlet assembly
Inside that connection is the check valve
Have to replace to whole assembly
__________________
I took my Medication today. HAVE YOU?
Dodge 3500 w/Tractor Motor
US NAVY---USS Decatur DDG-31
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12-25-2023, 10:44 AM
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#7
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Senior Member
Join Date: Feb 2022
Posts: 347
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Fill the fresh water tank and try the pump.
This is the city water connection old biscuit mentioned: link didn’t post, copy and paste.
https://www.amazon.com/Optional-Flange-Camper-Trailer-Marine/dp/B017MO4XEA/ref=mp_s_a_1_4?keywords=rv+water+hose+connector&qi d=1703525699&sr=8-4
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12-25-2023, 11:35 AM
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#8
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Senior Member
Join Date: Oct 2019
Location: Buena Vista, Baja California Sur
Posts: 802
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Dirty water filter?
__________________
Mark & Jen Rayor, Baja Ca Sur, Mexico
04 Prevost H3 45 Liberty Elegant Lady 24V
toad, Jeep Willys Wrangler
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12-26-2023, 08:21 AM
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#9
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Senior Member
Gulf Streamers Club Ford Super Duty Owner
Join Date: Aug 2015
Location: Memphis, TN
Posts: 4,900
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Sounds like WATER FILTER IS CLOGGED; you should always carry spare filters for this reason, and a spare ($7-$10) WATER PRESSURE REGULATOR. Good Luck
__________________
(TerryH.) 2000-GS Conquest Limited 6266 Class-C 99-E450SD V10 
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