Reply
 
Thread Tools Search this Thread Display Modes
 
Old 03-15-2020, 06:42 PM   #1
2 Rivet Member
 
bella_intl's Avatar
 
2017 27' International
Lewes , Delaware
Join Date: Jun 2010
Posts: 32
Air in Fresh Water Line

I have a 2017 International Serenity 27 FBQ. I was having a problem with the ShurFlo Pump not appearing to work properly, it was pumping air and water, and would not prime from a bucket placed on the floor with a hose from the bucket to the pump. I replaced the pump and the water strainer, ensuring that all threaded connection had plumbers tape and were securely fastened. The pump will now pump from a bucket placed on the floor with a hose from the bucket to the pump. However, when the pump is connected to the line that connects to the fresh water tank. I am still getting a combination of air and water, mostly air. It appears to me that air is getting introduced upstream of the pump. I have visually checked what piping I am able to see, however, the piping drops through a hole in the floor, presumably then connecting to the fresh water tank. I am not going to drop the belly pan and try to find a problem under the trailer. Short of that, any thoughts on what might be going on?
__________________

__________________
Bella and the Beast
Bella - 2017 International Serenity 27FBQ
Beast - 2017 GMC Yukon Denali
bella_intl is offline   Reply With Quote
Old 03-15-2020, 08:42 PM   #2
CLOUDSPLITTER "Tahawus"
 
ROBERT CROSS's Avatar

 
2003 25' Classic
Zanadude Nebula , Milky Way
Join Date: Jun 2007
Posts: 14,900
Images: 1
No leaks?

Most common, an air lock.

Try raising and lowering the tongue jack with one outlet at a time open. On....off, up, down, wait for the pump to stop. Repeat if needed...last resort...shop vac outlet over the FW fill...or try that first.😂

Good luck...👍

Bob
🇺🇸
__________________

__________________
"Any nation that can survive what we have lately in the way of government, is on the high road to permanent glory."
Molly Ivins

"Instead of going to ’Starbucks…I make my own Coffee at home, yell out my name rong, then light a five dollar bill on fire"
Amanamus


Tahawus....🌥
ROBERT CROSS is offline   Reply With Quote
Old 03-15-2020, 09:41 PM   #3
Rivet Master
 
CBWELL's Avatar
 
1994 34' Excella
Warren , Manitoba
Join Date: Apr 2006
Posts: 678
Air cannot be introduced on the outlet side of the pump, as the line is under pressure. Water can come out but that is a "leak". The only way to intruduce air into the line is through an air leak on the inlet side of the pump, quite often in the strainer/filter fittings , or through a "venturi" system, which I have never seen in household or trailer applications. Recheck ALL fittings on the inlet side of the pump, as well as all the screws on the pump itself. You may also have a leaking gasket in the pump, but not very likely in a new unit.
__________________
ACI #7394
2012 GMC 2500 HD Duramax Denali
1976 31' Gone but fondly remembered
CBWELL is offline   Reply With Quote
Old 03-29-2020, 03:10 PM   #4
4 Rivet Member
Commercial Member
 
Castaway's Avatar
 
2012 25' FB Flying Cloud
Celina , Ohio
Join Date: Jul 2010
Posts: 429
Images: 3
Blog Entries: 1
I am having the exact same problems on our 2012 FC, installed new pump with no resolution. It pumps some water but would probably take 3-4 minutes to pump 1 gallon.




Gary
Castaway is offline   Reply With Quote
Old 03-29-2020, 04:45 PM   #5
Rivet Master
 
2014 20' Flying Cloud
Long Island , New York
Join Date: Jun 2015
Posts: 12,848
Is this a new problem, Gary, was everything OK with the old pump? Maybe re-check all the connections at the new pump. Can you get your head close to the pump and listen for odd sounds and leaks?

Is your water tank full?

Air in the lines can prevent the pump from priming correctly, so open and close each and every hot and cold water faucet/hand sprayer/shower head/exterior shower/toilet etc. to make sure there is no air in any of the lines. If you get some air out of any of the lines, go back around the trailer and do that again.

There should be an improvement, but if not it is possible that the new pump is defective IMO.

Good luck,

Peter
OTRA15 is offline   Reply With Quote
Old 03-29-2020, 04:51 PM   #6
Rivet Master
 
2014 20' Flying Cloud
Long Island , New York
Join Date: Jun 2015
Posts: 12,848
Quote:
Originally Posted by bella_intl View Post
. . .
. . . any thoughts on what might be going on?
As the OP of this thread, did you sort out your problem?

Thanks,

Peter
OTRA15 is offline   Reply With Quote
Old 03-29-2020, 06:39 PM   #7
4 Rivet Member
Commercial Member
 
Castaway's Avatar
 
2012 25' FB Flying Cloud
Celina , Ohio
Join Date: Jul 2010
Posts: 429
Images: 3
Blog Entries: 1
Quote:
Originally Posted by OTRA15 View Post
Is this a new problem, Gary, was everything OK with the old pump? The old pump acted the same way Maybe re-check all the connections at the new pump. Can you get your head close to the pump and listen for odd sounds and leaks?

Is your water tank full? yes

Air in the lines can prevent the pump from priming correctly, so open and close each and every hot and cold water faucet/hand sprayer/shower head/exterior shower/toilet etc. to make sure there is no air in any of the lines. If you get some air out of any of the lines, go back around the trailer and do that again. I will try this tomorrow

There should be an improvement, but if not it is possible that the new pump is defective IMO.



Good luck,

Peter

Thanks for the quick reply see my replies above in orange
Castaway is offline   Reply With Quote
Old 03-29-2020, 07:15 PM   #8
Rivet Master
 
2014 20' Flying Cloud
Long Island , New York
Join Date: Jun 2015
Posts: 12,848
Thanks. For how long did the old pump act the same way?

I guess there could be a small hole in the line coming from the water tank to the pump.

Or . . . What about the filter . . . Is there one near the pump? Maybe check that filter and clean it, and also make sure the gasket is sound and sealing well. A little plumber’s Vaseline [my term] might help here.

Peter
OTRA15 is offline   Reply With Quote
Old 03-29-2020, 08:30 PM   #9
Rivet Master
 
A W Warn's Avatar

 
2000 25' Safari
1999 34' Excella
Davidson County , North Carolina
Join Date: Aug 2006
Posts: 4,145
Quote:
Originally Posted by Castaway View Post
I am having the exact same problems on our 2012 FC, installed new pump with no resolution. It pumps some water but would probably take 3-4 minutes to pump 1 gallon.




Gary
Try taking the strainer out of the equation. Connect the hose directly to the pump.
I've had strainers that did not show a crack but leaked air. A few drops of water left during winter can do this.
__________________
Alan
2014 Silverado LTZ 1500 Crew Cab 5.3L maximum trailering package
A W Warn is offline   Reply With Quote
Old 03-29-2020, 08:54 PM   #10
4 Rivet Member
 
mkcurtiss's Avatar

 
1968 26' Overlander
CORDOVA , TN
Join Date: Apr 2018
Posts: 338
Images: 4
is the fresh water tank is completely full of water?

If not, fill the fresh water tank completely and see if you still have the same problem....

If you do, then the leak is in the inlet side of the hose from the tank to the pump....

If you do not have the same problem when the tank is full, but you do when it is say, half full, it is possible that the pickup for the fresh water pump is not resting on the bottom of the fresh water tank.....it may have somehow cracked and is sucking air instead of water because it is not drawing water from the very bottom of the tank. The same way that if you are drinking a soda from a straw, and the straw is cracked a couple inches from the bottom of your cup.....you start getting lots of air instead of drink......
__________________
1968 Overlander Land Yacht International
Ford E-350 W V-10 booom!
2018 Chevy Tahoe smooooooth
Find a way to enjoy life and have fun, every day !
mkcurtiss is offline   Reply With Quote
Old 03-29-2020, 10:40 PM   #11
Rivet Master
 
2018 25' International
Slidell , Louisiana
Join Date: Sep 2017
Posts: 871
As others have mentioned the problem is most consisten with an air leak somewhere on the pump inlet. The strainer and gaskets, any of the fitting gaskets. Missing gaskets on the inlet won't leak as they are under a slight negative pressure. even a hole in the inlet tubing. None of it will leak but even small holes and gaps will cause the symptoms you describe.

If you can't locate the issue, remove the connection at the pump and connect an eternal piece of tubing. then suck on the hose to pull a vacuum. do you get pure water or air? If air trace back to see if you can find where air is entering the suction system.
__________________
Brian
BayouBiker is offline   Reply With Quote
Old 03-30-2020, 06:44 AM   #12
2 Rivet Member
 
bella_intl's Avatar
 
2017 27' International
Lewes , Delaware
Join Date: Jun 2010
Posts: 32
OTRA15: I have not had the ability to access my trailer for the past couple of weeks due to staying at home. I will check the filter again, however, as I said, I replaced both the pump and the filter and used plumbers tape on all screw fittings. Pretty confident all of that is secure. Will need to try the other suggestions once I get access to the trailer and can bring it back to the house for troubleshooting.
__________________
Bella and the Beast
Bella - 2017 International Serenity 27FBQ
Beast - 2017 GMC Yukon Denali
bella_intl is offline   Reply With Quote
Old 03-30-2020, 11:31 AM   #13
Rivet Master
 
2014 20' Flying Cloud
Long Island , New York
Join Date: Jun 2015
Posts: 12,848
Gotcha, thanks.
OTRA15 is offline   Reply With Quote
Old 03-31-2020, 05:59 AM   #14
2 Rivet Member
 
bella_intl's Avatar
 
2017 27' International
Lewes , Delaware
Join Date: Jun 2010
Posts: 32
Air in Fresh Water Line

BayouBiker: I did hook up a hose to the pump and pulled water from a bucket with no problem, the problem is only when I am connected to the fresh water tank. Although, I do need to connect the hose upstream of the filter as well and make sure air is not being introduced by the filter assembly.
__________________
Bella and the Beast
Bella - 2017 International Serenity 27FBQ
Beast - 2017 GMC Yukon Denali
bella_intl is offline   Reply With Quote
Old 03-31-2020, 06:54 AM   #15
2 Rivet Member
 
2019 25' Flying Cloud
Newmanstown , Pennsylvania
Join Date: Jan 2020
Posts: 25
Quote:
Originally Posted by bella_intl View Post
BayouBiker: I did hook up a hose to the pump and pulled water from a bucket with no problem, the problem is only when I am connected to the fresh water tank. Although, I do need to connect the hose upstream of the filter as well and make sure air is not being introduced by the filter assembly.
Maybe the valve you are turning to change from drawing from the bucket to the fresh tank is not switching completely. Can you cap off the line you use for the bucket at the valve? That would eliminate the chance that it's staying open a little and drawing air. Just a guess.
__________________

Jonmad 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
Connecting home hot water line to '67 Overlander hot water line w/PEX~Sharkbite Billyjchase Plumbing - Systems & Fixtures 3 05-31-2019 10:15 AM
Suction line from fresh water tank Kmontier Plumbing - Systems & Fixtures 7 10-11-2015 10:40 PM
Fresh water inlet line Bob Riffle Airstream Classifieds 0 02-05-2015 04:42 PM
Need fresh water line help '72 29' Airline Fresh Water Systems 0 03-20-2014 05:39 PM
Need a better fresh water line seal at Toilet Brow324 Sinks, Showers & Toilets 9 10-30-2012 08:24 PM


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 02:59 AM.


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