Reply
 
Thread Tools Search this Thread Display Modes
 
Old 10-07-2018, 06:33 AM   #1
Winnebago Camper
 
Join Date: Sep 2018
Posts: 10
San-T-Flush Pre-Tank Leak

During my last tank dump I seem to have developed a leak within the bathroom of my 2016 Minnie Winnie 25B. I was hooked up to the spicket and flowing water to the San-T-Flush fitting. Fresh water was leaking outside as to look like their was an external leak, but I also had water leaking in the bathroom. I am trying to troubleshoot this without having to perform a leak test again. Looking to hear people's experiences and what was fixed to correct their problems. I don't plan to do this right away as we have a few more trips planned this year before storing. I guess my questions are:

1. Possibility of too much pressure?
2. Cracked PEX lines or fittings?
3. Clogged sprayer causing back-pressure to induce the leak?
4. Anything I am missing?
5. Is there a link to find a diagram of the San-T-Flush system installed in my RV?

Thanks for y'alls insight.
Mike
valsamik is offline   Reply With Quote
Old 10-07-2018, 11:02 AM   #2
Winnie-Wise
 
luvlabs's Avatar
 
Join Date: Feb 2012
Location: Las Cruces, NM
Posts: 393
There should be a backflow preventer followed by vacuum breaker before the San-T-Flush. Leaks develop in backflow preventer and the vacuum breaker since they are made out of plastic and they do not get winterized properly.

BTW, 1,2,and 3 are all a big no. 5 - should be on the Winnebago website.
__________________
Roger & Mary
2017 Winnebago Navion 24V
2014 Tiffin Phaeton 36GH (Sold)
luvlabs is offline   Reply With Quote
Old 10-08-2018, 03:51 AM   #3
Winnebago Camper
 
Join Date: Sep 2018
Posts: 10
Thanks luvlabs. I got the plumbing diagram off the Winnebago website, but didn't see anything specific to San-T-Flush. I'll check again using the terms you provided. I found it...well, you have to be in the correct diagram. Now to figure out how to get access to it. Might be a joined effort with changing the shower surround.
valsamik is offline   Reply With Quote
Old 10-21-2018, 05:33 PM   #4
Winnebago Camper
 
Join Date: Sep 2018
Posts: 10
I figured out how to gain access to the vacuum-breaker. I first thought the everything was held together with plastic rivets, but turns out it uses screws with a washer that accepts push-on plastic covers. Turns out there is a crack on the check valve. Probably going to change the fitting to metal instead of replacing with plastic.
Attached Files
valsamik is offline   Reply With Quote
Old 10-25-2018, 11:13 AM   #5
Winnebago Camper
 
Join Date: Sep 2018
Posts: 20
I have a new '19 25j which had a leak coming down below the shower as I didn't winterize quick enough. Luckily I found the problem up at the shower controls as the plastic elbow to the shower wand cracked. That plastic panel came off easily with screws and I replaced most of the elbows back there with brass and pex. New silicon around the panel and it's good to go.
fstclyz is offline   Reply With Quote
Old 11-12-2018, 05:15 AM   #6
Winnebago Camper
 
Join Date: Sep 2018
Posts: 10
I replaced the plastic check valve this weekend...they are a bit pricey at $33. I went ahead and modified to brass fittings and shark bite pex fittings for easier removal and installation next time. Searching for a brass check valve to finish the upgrade and get rid of the plastic. No leaks, so that is good...until next time.
valsamik is offline   Reply With Quote
Reply

Tags
leak, tank


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
San-T-Flush??? FernG Plumbing | Systems and Fixtures 7 06-27-2017 05:08 AM
Black Tank Flush valve leak deanc Plumbing | Systems and Fixtures 8 12-01-2011 05:58 PM
Pre-inspection on used Tour fotoguy Winnebago Class A Motorhomes 8 09-13-2008 03:26 PM
San T Flush Question (again) LK23 Plumbing | Systems and Fixtures 7 11-02-2007 03:01 PM
Pre-puchase damage tps0424 Winnebago General Discussions 19 10-26-2007 03:28 PM

» Featured Campgrounds

Reviews provided by

Disclaimer:

This website is not affiliated with or endorsed by Winnebago Industries or any of its affiliates. This is an independent, unofficial site.


Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -6. The time now is 09:37 PM.


Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2019, vBulletin Solutions, Inc.
×