Go Back   iRV2 Forums > MOTORHOME FORUMS > Class A Motorhome Discussions
Click Here to Login
Join iRV2 Today

Mission Statement: Supporting thoughtful exchange of knowledge, values and experience among RV enthusiasts.
  This discussion is proudly sponsored by:
Please support our sponsors and let them know you heard about their products on iRV2
Thread Tools Search this Thread Display Modes
Old 05-15-2011, 11:31 AM   #1
Junior Member
Join Date: May 2011
Posts: 3
Water pump pressure

Good day
I am having problems getting enough pressure from my water pump to supply the lines. I have adjusted the valves and still nothing.does anyone have any other ideas?

Tony.langdon is offline   Reply With Quote
Join the #1 RV Forum Today - It's Totally Free!

iRV2.com RV Community - Are you about to start a new improvement on your RV or need some help with some maintenance? Do you need advice on what products to buy? Or maybe you can give others some advice? No matter where you fit in you'll find that iRV2 is a great community to join. Best of all it's totally FREE!

You are currently viewing our boards as a guest so you have limited access to our community. Please take the time to register and you will gain a lot of great new features including; the ability to participate in discussions, network with other RV owners, see fewer ads, upload photographs, create an RV blog, send private messages and so much, much more!

Old 05-15-2011, 11:39 AM   #2
Senior Member
njs42's Avatar
National RV Owners Club
Workhorse Chassis Owner
Join Date: Apr 2011
Location: Federal Way, Wa.
Posts: 2,901
Do you know for sure the water pump is applying pressure---can you test it? Is the source providing adequate water---like from the tank to the pump. Kink in a hose? Do you need to have more air in the source so as not to have a vaccum effect---anything clogged---like a vent? Just some Ideas the kind I would have if I was there talkin' to ya-----good luck I'm sure a more techinical person will respond.

I do all my own stunts
03 Dolphin LX 6355, Workhorse W22, 8.1 vortec, 04 CR-V, Blue Ox, Brake Pro----Norm, Barb and
Doc(He's a PhD)
njs42 is offline   Reply With Quote
Old 05-15-2011, 12:06 PM   #3
Senior Member
Join Date: Feb 2010
Posts: 623
When I fill my fresh water tank I have to open a valve. If I don't close it after filling I have no pressure.
koda59 is offline   Reply With Quote
Old 05-15-2011, 12:09 PM   #4
Moderator Emeritus
Mike Canter's Avatar

Join Date: Apr 2008
Location: Freeport, ME
Posts: 4,707
Do you have water filters and if so then have you tried it without the filters. There are several different microns of filters and if you use the wrong ones you will bring the flow to a standstill.
Mike Canter
"Gunner" USN Retired, Airdale
2004 Monaco Signature 44' Conquest. Detroit 60
Mike Canter is offline   Reply With Quote
Old 05-15-2011, 12:29 PM   #5
Senior Member
GaryKD's Avatar
Newmar Owners Club
Join Date: Jul 2006
Location: Wellington, Florida
Posts: 12,533
Hi Tony.langdon,
Welcome to iRV2. Not knowing the coach you own this these are some things you can try.

1. Is the water pressure problem the same when you source water from CG water or coach water tank? If yes, the valves mentioned in #2 need to be checked.

2. If the problem is only with coach tank water consider ensuring all the valves are correctly positioned to allow the pump to work correctly. These valves can be the fill, winterizing and HWH bypass valves.

3. If the problem is only with CG water source, the filters mentioned by Mike Canter is a good first step. Try without and with filters.
2005 Newmar KSDP 3910 + GMC ENVOY XUV 37K lbs Moving Down The Road
The Avatar Is Many Times Around The USA
Nobody Knows Your Coach Like Somebody Who Owns One Just Like Yours
GaryKD is offline   Reply With Quote
Old 05-15-2011, 02:28 PM   #6
Moderator Emeritus
Gary RVRoamer's Avatar

Join Date: Jan 2000
Location: Silver Springs, FL. USA
Posts: 18,632
What most people call lack of pressure is really a lack of water volume. The standard pump setting is 45 psi and that's plenty of pressure, but restrictions in the lines, faucets, shower heads, etc. can reduce the amount of water (flow or gallons per minute) to unacceptable levels. Water filters are one common cause - the finer the filter, the less water passes through. Clogged screens on the faucets and flow restrictors in shower heads are other common causes for this complaint.
Gary Brinck
Former owner of 2004 American Tradition
Home is in the Ocala Nat'l Forest near Ocala, FL
Summers in Black Mountain, NC
Gary RVRoamer is offline   Reply With Quote
Old 05-15-2011, 07:36 PM   #7
burmashave's Avatar
Join Date: Apr 2011
Posts: 71
I don't know the age of your coach, or whether or not you have been in the habit of using filters, but your faucet fixtures themselves may have accumulated calcium or other hard water deposits that are restricting the water flow. Is it in all sinks, toilet etc? Is it worse in the bathroom sink than the kitchen?
burmashave is offline   Reply With Quote
Old 05-16-2011, 07:42 AM   #8
Junior Member
Join Date: May 2011
Posts: 3
the coach is a 1997 bounder 38z, and i have the same water pressure problems in everything.

Tony.langdon is offline   Reply With Quote

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off

Similar Threads
Thread Thread Starter Forum Replies Last Post
City water plus water pump don8ch Newmar Owner's Forum 9 10-16-2010 09:42 AM
Low Water Pump Pressure Gadget Man MH-General Discussions & Problems 7 04-30-2008 05:27 PM
Water pump problem Overlander MH-General Discussions & Problems 4 04-21-2008 05:04 PM
Water pressure problem machman72 Class A Motorhome Discussions 4 05-31-2007 03:52 AM
Coach water pump problem: hot and cold Oh-one Winnebago Industries Owner's Forum 8 02-19-2007 04:56 AM

» Featured Campgrounds

Reviews provided by

Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -6. The time now is 04:00 PM.

Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2018, vBulletin Solutions, Inc.