Jayco RV Owners Forum
 


Reply
 
Thread Tools Display Modes
 
Old 07-11-2011, 09:58 AM   #1
Senior Member
 
Join Date: Jul 2011
Location: Iowa
Posts: 107
Water pump cavitates

I have had this problem with my water pump. Usually on Saturday night, my fresh tank acts as if it has been run dry. The pump starts to suck air, cavitate, sputtering out the faucets whe opened.

The fresh has water in it! I know it has water in it, there is NO way I am using 100 gallons in less than 2 days, I crawled underneath to check them.
My unit is dead level.
My pump is new, warranty replacement.
What I did this last time was to up the nose so it will drain to the rear tank.
What is going on?????
__________________

Big Jim is offline   Reply With Quote
Old 07-11-2011, 10:01 AM   #2
Senior Member
 
Terry's Avatar
 
Join Date: Feb 2011
Location: Germantown, TN
Posts: 4,923
If you fill up the tank again does it start working fine? I am wondering if the siphon tube is not all the way down to the bottom of the tank.
__________________

__________________
Terry
2009 Jayco 26BH
2004 Chevy Silverado 1500
2009 JayFlight Manual Library

Want to add a signature to your posts? --> Click Here
Terry is offline   Reply With Quote
Old 07-11-2011, 10:10 AM   #3
Senior Member
 
Join Date: Jul 2011
Location: Iowa
Posts: 107
I does come out of it if I add water, but on Friday night I fill my tanks at the campground, FULL, unti it comes out the overflows.
It's puking as I level it.
The pump draws from the side if the tank, near the bottom, at the rear of the tank, there is a fitting welded to the tank.
It gets really noisy, hammering the water lines, sounds like the pump is a jackhammer!
Big Jim is offline   Reply With Quote
Old 07-11-2011, 06:20 PM   #4
Member
 
Join Date: May 2011
Location: Nebraska
Posts: 98
Check the suction fittings. Maybe it's drawing in air. Is a vent open somewhere that it shouldn't be? Has the pump been primed and vented? I'd check that stuff first.
__________________
2012 Forest River 28bh
2012 Toyota Tacoma
-------------------------
2012 Skylark KFV - Gone
2010 Jayco 806 - Gone
Zombied is offline   Reply With Quote
Old 07-11-2011, 08:38 PM   #5
Senior Member
 
Join Date: Jul 2011
Location: Iowa
Posts: 107
It does it when the tanks get "low."
It says 1/3 on the meter, but still should have 33 gallon on 100 g capaciy, correct?
I let the tanks out on my way home, about 10 minutes, then, drained in my drive for another 45 minutes.
__________________

2011 Jayco Jayflight 22FB
2004 Ford F-150 5.4 Triton, K&N FIPK, Magna-flow muffler
Big Jim is offline   Reply With Quote
Old 07-12-2011, 10:49 AM   #6
Senior Member
 
David472's Avatar
 
Join Date: Feb 2011
Location: SW Ontario
Posts: 1,393
Quote:
Originally Posted by tafische View Post
If you fill up the tank again does it start working fine? I am wondering if the siphon tube is not all the way down to the bottom of the tank.
I agree with tafische,
the supply line pick-up must be in the wrong spot of the FW tank.
I would have it checked under warranty, since by your signature, it's a 2011.
__________________
Jayco Eagle 31.5RLDS
GMC Sierra 2500 HD
David472 is offline   Reply With Quote
Old 07-12-2011, 01:06 PM   #7
Senior Member
 
Join Date: Jul 2011
Location: Iowa
Posts: 107
I called my dealer talked to a service tech, he said, that sometimes the inlet valve that you use to winterize the system may leak.
Intead of letting it sit at the shop I did it myself, bought some new PEX valves and installed them hope this is it!!!
Yes, I know my warranty would have covered this, if my fix doesn't do it, it will go back, they can deal with it.
__________________

2011 Jayco Jayflight 22FB
2004 Ford F-150 5.4 Triton, K&N FIPK, Magna-flow muffler
Big Jim is offline   Reply With Quote
Old 07-13-2011, 02:13 AM   #8
Senior Member
 
Join Date: May 2011
Location: Aldergrove British Columbia
Posts: 815
I just read another post where trailers were loosing water out their over flow while they were driving. Difficult to analyze when your driving the trailer. I guess with the water sloshing around while driving creates the chance for it to escape. I have noticed a lot of posts lately where people couldn't account for loss of water. I wonder if this overflow tube is a recent addition to the Jayco design. I'm aware there are other pump related problems as well. I was surprised to find that there is at least a dozen feet from my fw tank to the pump. I have not experienced any problems but am going to keep a close eye on my water levels.
__________________
Richard
2011 Jay Feather Select 28U
2007 Silverado Crewcab LT 6.0L
Happily married and father of
two university students.
Cancer survivor
Murphie is offline   Reply With Quote
Old 07-13-2011, 07:06 AM   #9
Senior Member
 
RVhiker's Avatar
 
Join Date: Dec 2010
Posts: 1,253
On my new trailer, the water strainer attached to the inlet side of the pump was missing an "O" ring, and sucking air.
__________________
There's lots of advice and information in forums... sometimes it is correct. For example, all of my posts are made by a political appointee who got the job as a reward for contributions to my diesel bill.

2011 Jayco 28.5RLS; 2008 Chevy Duramax; Pullrite Superglide Hitch

RVhiker is offline   Reply With Quote
Old 07-17-2011, 05:06 PM   #10
Senior Member
 
Join Date: Jul 2011
Location: Iowa
Posts: 107
I think that my tanks were low. I have been having problems with my tanks puking water out the overflows after I fill them.
I installed some valves on my overflows to close them off as I am driving to my site.
I'll see how this works...
__________________

__________________

2011 Jayco Jayflight 22FB
2004 Ford F-150 5.4 Triton, K&N FIPK, Magna-flow muffler
Big Jim is offline   Reply With Quote
Reply

Thread Tools
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


» Virginia State Campgrounds

Reviews provided by

Powered by vBadvanced CMPS v3.2.3

All times are GMT -6. The time now is 09:25 AM.


Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2017, vBulletin Solutions, Inc.
Copyright 2002-2016 Social Knowledge, LLC All Rights Reserved.