Reply
 
Thread Tools Search this Thread Display Modes
 
Old 11-28-2019, 05:02 PM   #1
Rivet Master
 
The Colonel's Avatar
 
2017 25' Flying Cloud
Florence , Alabama
Join Date: Dec 2015
Posts: 638
Blog Entries: 1
Water pump check valve source

I want to put a check valve inline with my wp on the output side. Looked at Amazon but everything with f-m connections is in wrong direction. I know I can use a m-m and put a coupling from pump out to cv but wanted to eliminate extra leak point. Does anyone know of a source, thatís reasonable to get a f-m cv with f-m flow direction? Tired of leaking internal cv in pump.
__________________

__________________
The Colonel and Southern Belle
The Colonel is offline   Reply With Quote
Old 11-28-2019, 09:46 PM   #2
Rivet Master
 
wulfraat's Avatar
 
2017 30' International
Broomfield , Colorado
Join Date: Apr 2009
Posts: 2,225
Images: 1
Is the check valve thatís built into your surflow pump not working?
__________________

wulfraat is offline   Reply With Quote
Old 11-29-2019, 08:02 AM   #3
Rivet Master
 
The Colonel's Avatar
 
2017 25' Flying Cloud
Florence , Alabama
Join Date: Dec 2015
Posts: 638
Blog Entries: 1
Quote:
Originally Posted by wulfraat View Post
Is the check valve thatís built into your surflow pump not working?


It leaks often. First time I removed pump and disassembled head, cleaned everything-there was no obvious debris, just some light tarnish-like stain that I cleaned with paper towel. Put it back and all worked fine. A week or so later it filled fw tank again. I ran pump for ten minutes with cw off and it cleared. Itís done it again, hence the interest in installing a separate cv. I use a water filter from cv faucet so not sure what else to do besides chg the pump. Btw the pump is the shurflo a65 that some rave about. Mine is loud but diff topic
__________________
The Colonel and Southern Belle
The Colonel is offline   Reply With Quote
Old 11-29-2019, 08:37 AM   #4
Rivet Master
 
wulfraat's Avatar
 
2017 30' International
Broomfield , Colorado
Join Date: Apr 2009
Posts: 2,225
Images: 1
I see. Iíd just change the pump. They are not that robust. I actually keep a spare with me as several that Iíve owned have failed. They are about $100 bucks.

Could be tricky to insert a secondary check valve the way airstream plumb the connections to the pump....
wulfraat is offline   Reply With Quote
Old 11-29-2019, 09:33 AM   #5
4 Rivet Member
 
1976 31' Excella 500
Chappell Hill , Texas
Join Date: Sep 2017
Posts: 377
Images: 1
I put a valve after the pump. I close it when on city water.
tbashin is offline   Reply With Quote
Old 11-29-2019, 09:39 AM   #6
HDDEERING
 
hddeering's Avatar
 
2020 28' Flying Cloud
Alamogordo , New Mexico
Join Date: Nov 2015
Posts: 9
I installed a half inch brass swing check vale on the vertical supply line to the pump.
hddeering is offline   Reply With Quote
Old 11-29-2019, 10:19 AM   #7
Stay CazuaL
 
cazual6's Avatar

 
2018 25' Flying Cloud
2014 19' Flying Cloud
Reseda , California
Join Date: Aug 2014
Posts: 833
Images: 1
Quote:
Originally Posted by The Colonel View Post
I want to put a check valve inline with my wp on the output side. Looked at Amazon but everything with f-m connections is in wrong direction. I know I can use a m-m and put a coupling from pump out to cv but wanted to eliminate extra leak point. Does anyone know of a source, thatís reasonable to get a f-m cv with f-m flow direction? Tired of leaking internal cv in pump.
I put my check valve between fresh water tank and the pump instead.

I used this
https://www.amazon.com/gp/product/B0...?ie=UTF8&psc=1

You can also see it in my FB group located at the bottom of my signature.
__________________
"No job is so simple that it cannot be done wrong."
"Everyone is entitled to be stupid, but some abuse the privilege."
"Either I will find a way, or I will make one."
WBCCI 9164
cazual6 is offline   Reply With Quote
Old 11-29-2019, 10:19 AM   #8
Half a Rivet Short
 
2017 30' Classic
Carlisle , Pennsylvania
Join Date: May 2017
Posts: 8,693
Hi

There should be no difference between putting the valve in front of the pump vs putting it after the pump. If the fittings do not work "after" they should be fine for a valve installed "before". All this assumes the issue is with water *through* the pump. If water leaks out of the pump its self, replace the pump.

Bob
uncle_bob is offline   Reply With Quote
Old 11-29-2019, 03:48 PM   #9
Rivet Master
 
The Colonel's Avatar
 
2017 25' Flying Cloud
Florence , Alabama
Join Date: Dec 2015
Posts: 638
Blog Entries: 1
Quote:
Originally Posted by uncle_bob View Post
Hi

There should be no difference between putting the valve in front of the pump vs putting it after the pump. If the fittings do not work "after" they should be fine for a valve installed "before". All this assumes the issue is with water *through* the pump. If water leaks out of the pump its self, replace the pump.

Bob


Kinda, but Iíd want it after pump to keep force to open on pressure side of pump to not reduce suction. FWIW
__________________
The Colonel and Southern Belle
The Colonel is offline   Reply With Quote
Old 11-30-2019, 05:52 AM   #10
Half a Rivet Short
 
2017 30' Classic
Carlisle , Pennsylvania
Join Date: May 2017
Posts: 8,693
Quote:
Originally Posted by The Colonel View Post
Kinda, but Iíd want it after pump to keep force to open on pressure side of pump to not reduce suction. FWIW
Hi

Over the range of pressures that are likely to happen, the delta across the pump would be the same either way and it should work ok.

Bob
uncle_bob is offline   Reply With Quote
Old 11-30-2019, 07:33 AM   #11
Rivet Master
 
1988 25' Excella
1987 32' Excella
Knoxville , Tennessee
Join Date: Oct 2010
Posts: 3,404
Blog Entries: 1
I think the check valve should go on the pressure side of the pump, where you want it to. An extra well connected fitting is not going to leak. There are lots of fittings in a trailer anyway. So get what configuration you can and install it.
__________________

Bill M. is offline   Reply With Quote
Reply


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
Rub rail strip insert, door latches, & on-board pump check valve Robere General Repair Forum 4 02-23-2019 04:03 PM
Leak at check valve or water pump. montanablue 1997 Safari 16 07-31-2018 07:26 PM
Bad Check Valve in Pump??? tinbender Water Heaters, Filters & Pumps 3 06-16-2011 06:56 PM
Today gate valve, later check valve. GlenCoombe Classic Motorhomes 1 09-20-2005 11:02 AM
Check , Check and Re-Check a new refer saga. thenewkid64 Refrigerators 13 06-24-2002 09:54 AM


Featured Campgrounds

Reviews provided by

Disclaimer:

This website is not affiliated with or endorsed by the Airstream, Inc. or any of its affiliates. Airstream is a registered trademark of Airstream Inc. All rights reserved. Airstream trademark used under license to Social Knowledge LLC.



All times are GMT -6. The time now is 01:59 AM.


Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2020, Jelsoft Enterprises Ltd.