Go Back   iRV2 Forums > iRV2.com COMMUNITY FORUMS > iRV2.com General Discussion
Click Here to Login
Join iRV2 Today

Mission Statement: Supporting thoughtful exchange of knowledge, values and experience among RV enthusiasts.
Reply
  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 11-02-2015, 12:46 PM   #1
Senior Member
 
DonDee's Avatar
 
Join Date: May 2012
Location: Spring Valley AZ
Posts: 1,204
Low water flow after 3-5 seconds..

Posting for a friend who's run out of ideas how to solve this problem.

"I've been experiencing low water pressure on my bus since I finished it this summer. Ive tried replacing the pump, and all my connections/tubing are 1/2 Pex".

When Im connected to city water, I get awesome pressure and all flows well.

When Im boondocking, I get great pressure for the first 3-5 seconds, then I have very little pressure, showering sucks and there's no way Im getting the 3.xgpm that shurflow specs the pump to. This happens with either hot or cold, and on all my faucets."


__________________

__________________
Don, Mary and Spooky
'00 Bluebird Skoolie Conversion
Geo Tracker/Dodge Neon/Aprilia Scooter towed
DonDee 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 11-02-2015, 02:29 PM   #2
Senior Member
 
jacwjames's Avatar
 
Monaco Owners Club
Join Date: Jun 2014
Posts: 4,597
It appears as his system is pressurizing but then after the faucet is turned on there is no flow. On my Shurflo pump there are screens on the intake side, you may have your friend check to see if these screens are plugged. A plugged screen would allow the system to pressurize but once you try to run water would not provide the volume you need.
__________________

__________________
Jim J
2002 Monaco Windsor 38 PKD
2005 Jeep Grand Cherokee w/5.7 Hemi
jacwjames is offline   Reply With Quote
Old 11-02-2015, 02:42 PM   #3
Senior Member
 
Gordon Dewald's Avatar
 
Winnebago Owners Club
Join Date: Mar 2014
Posts: 10,131
We changed pumps to a larger pump. Variable speed and 5gpm. They make bigger but this was enough.

Other thing is to put in a pressure tank. It should help until it runs empty and then you are likely back to your issue.
__________________
Gordon and Janet
Tour 42QD/inTech Stacker
Gordon Dewald is online now   Reply With Quote
Old 11-02-2015, 03:58 PM   #4
Member
 
leeshearer's Avatar
 
Join Date: Jun 2015
Posts: 32
I say blocked/restrictive connection at the water tank.
__________________
leeshearer is offline   Reply With Quote
Old 11-02-2015, 04:43 PM   #5
Senior Member
 
Join Date: Aug 2012
Posts: 1,323
Quote:
Originally Posted by leeshearer View Post
I say blocked/restrictive connection at the water tank.
I agree that the problem is from the pump back to the tank. To test, run a temporary hose from the pump into a bucket of water. If that works, blow out, clean or replace the line back to the tank.
__________________
lynnmor is offline   Reply With Quote
Old 11-02-2015, 04:54 PM   #6
Senior Member
 
Tiffin Owners Club
Freightliner Owners Club
Join Date: Aug 2014
Posts: 1,845
Quote:
Originally Posted by lynnmor View Post
I agree that the problem is from the pump back to the tank. To test, run a temporary hose from the pump into a bucket of water. If that works, blow out, clean or replace the line back to the tank.
+1
Excellent video.

As stated it is a problem between the tank and pump. Try to disconnect the output side of the pump. Run the pump, and you will surely see that there is very little flow out of the pump.

You might even try a quick connection of your garden hose to the hose going back to the tank...back flushing. If this fixes it, it proves where the problem is, but it will likely return unless you clan your water tank.
I think some tanks have pick-up hoses, and others have a fitting at the bottom of the tank.

Regards,

Dan
__________________
2014 40QBH Phaeton DP Cummins 380HP ISL, Freightliner XC, 2014 Jeep Trailhawk TOAD
Blue Ox Aventa tow bar, SMI Air Force One -South Orange County Ca.
dpinvidic is offline   Reply With Quote
Old 11-02-2015, 06:37 PM   #7
Senior Member
 
Johndale's Avatar


 
Winnebago Owners Club
Join Date: Sep 2013
Location: Ft Worth texas
Posts: 963
Click image for larger version

Name:	ImageUploadedByiRV2 - RV Forum1446510510.893800.jpg
Views:	64
Size:	124.4 KB
ID:	111039
I know mine is a Winnebago but just wondering do you have the winterizing kit on your rig?
Because if that valve is leaking you will suck air. Because between the pump to tank that is it. I put a picture of mine and I know we have a different system but they should work the same way. Right behind the screen you can see my valve. This is my 2 cents. Good luck


Sent from my iPhone using iRV2 - RV Forum
__________________
2003 Sightseer 33L
Ford F53
Johndale is offline   Reply With Quote
Old 11-03-2015, 10:29 AM   #8
Senior Member
 
wa8yxm's Avatar
 
Damon Owners Club
Workhorse Chassis Owner
Join Date: Mar 2009
Posts: 22,787
Two possible problems..
Least likely. Pinch in pump discharge hose (Before the first "T" where it joins the rest of the plumbing

Most likely: Obstruction on pump inlet including the following possible issues:

Clogged tank outlet strainer (this is part of the fitting the pump suction line connects to, It is removable)
Partially opened tank outlet valve
Kink in hose (Suction hose)
Clogged pump inlet strainer (on the side of the pump)

Bad pump (middle likelyhood).
__________________
Home is where I park it!
wa8yxm is offline   Reply With Quote
Old 11-09-2015, 02:06 PM   #9
Senior Member
 
DonDee's Avatar
 
Join Date: May 2012
Location: Spring Valley AZ
Posts: 1,204
Issue resolved, thanks everyone!!


"Looks like there was, after all, a mouse living inside the line from tank to pump....

ok, it was just a whole little nest of polyethelyne shavings from, I suspect, when the holes were drilled into the tank for the bung fittings.

Now my water pressure is awesome and I have a new problem--My water tank lasts half as long as it used to!

Thanks guys "
__________________

__________________
Don, Mary and Spooky
'00 Bluebird Skoolie Conversion
Geo Tracker/Dodge Neon/Aprilia Scooter towed
DonDee is offline   Reply With Quote
Reply

Tags
water



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
Water flow vfauto Newmar Owner's Forum 1 05-23-2015 09:37 PM
Bounder: Low pressure water ConnieTony Fleetwood Products Owner's Forum 14 03-26-2015 09:50 AM
Low or Slow Water Pressure Texstr Class A Motorhome Discussions 20 11-06-2014 10:06 AM
Water leak on control valve. See pic Beeper Class A Motorhome Discussions 90 08-19-2014 09:13 PM
Low Water Pressure ddunbar50 5th Wheel Discussion 24 08-15-2014 04:29 PM

» Virginia Campgrounds

Reviews provided by


Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -6. The time now is 01:28 PM.


Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2017, vBulletin Solutions, Inc.