Free 7 Day Trial RV GPS App RV Trip Planner Campground Reviews RV Maintenance Free 7 Day Trial ×
 

Go Back   Thor Forums > Thor Tech Forums > Maintenance and Repair
Click Here to Login
Reply
 
Thread Tools Display Modes
 
Old 09-16-2020, 03:10 AM   #1
Junior Member
 
Brand: Thor Motor Coach
State: Arizona
Posts: 15
THOR #19763
Gray Water Tank Leak On Top

We have a 2018 Thor Four Winds 28Z 30' RV, and the gray water has a leak on top of the tank. I can't get to the top without lowering the tank down. Is it worth trying to lower this thing, or should I have a repair company do it? My biggest fear is if I lower the tank, it'll break the seal completely and I'll be missing a part that I need.

Any thoughts on if this is a job I should try to tackle myself?

Thanks!

__________________
eccentricson is offline   Reply With Quote
Old 09-16-2020, 03:16 AM   #2
Senior Member
 
ducksface's Avatar
 
Brand: Thor Motor Coach
Model: 2018 24.1 AXISSIXxSIX
State: Arizona
Posts: 3,924
THOR #13932
Quote:
Originally Posted by eccentricson View Post
We have a 2018 Thor Four Winds 28Z 30' RV, and the gray water has a leak on top of the tank. I can't get to the top without lowering the tank down. Is it worth trying to lower this thing, or should I have a repair company do it? My biggest fear is if I lower the tank, it'll break the seal completely and I'll be missing a part that I need.

Any thoughts on if this is a job I should try to tackle myself?

Thanks!
Your fear is perfectly justified.
It's the story of my life.
Build a jig to build a tool to make a tool to install the two dollar part.
Then the lag strips in the plywood....

There's a whole nest of bad juujuu attached to a gray tank.
I'd pay the labor and have it done.
__________________
Below is a link to most of my modifications either accomplished or pending.
https://www.thorforums.com/forums/f2...n-18996-3.html

Click on my pictures then click the pop-up for a full screen zoomable picture.
ducksface is offline   Reply With Quote
Old 09-17-2020, 05:40 PM   #3
Senior Member
 
Model: Newmar Bay Star Sport 300
State: Alabama
Posts: 4,196
THOR #6826
Or, depending on your layout, consider opening the floor to make the repair with the tank in place. You’d need new flooring after but that might be an opportunity to upgrade the overall look and quality of your coach.
__________________
Pete'sMH is offline   Reply With Quote
Old 09-17-2020, 05:42 PM   #4
Junior Member
 
Brand: Thor Motor Coach
State: Arizona
Posts: 15
THOR #19763
Quote:
Originally Posted by Pete'sMH View Post
Or, depending on your layout, consider opening the floor to make the repair with the tank in place. You’d need new flooring after but that might be an opportunity to upgrade the overall look and quality of your coach.
I was thinking of doing this! The toilet is on a ledge and under that ledge is the gray water (black water is on the other side of the coach). But that ledge doesn't look too exciting to have to replace or fix. But definitely still an option!
__________________
eccentricson is offline   Reply With Quote
Old 09-17-2020, 06:50 PM   #5
Site Team
 
16ACE27's Avatar
 
Brand: Thor Motor Coach
Model: ACE 27.1
State: Florida
Posts: 7,523
THOR #7035
Quote:
Originally Posted by eccentricson View Post
I was thinking of doing this! The toilet is on a ledge and under that ledge is the gray water (black water is on the other side of the coach). But that ledge doesn't look too exciting to have to replace or fix. But definitely still an option!
You think the grey water tank is under the toilet?

If you have a leak in this area I would look closely at the shower drain.
__________________
Ted & Melinda
2016 ACE 27.1
2016 Chevy Sonic Toad
2020 Chevy Colorado Z71 Trail Runner Alternate Toad
16ACE27 is offline   Reply With Quote
Old 09-17-2020, 07:14 PM   #6
Junior Member
 
Brand: Thor Motor Coach
State: Arizona
Posts: 15
THOR #19763
Quote:
Originally Posted by 16ACE27 View Post
You think the grey water tank is under the toilet?

If you have a leak in this area I would look closely at the shower drain.

Yeah, very weird place for the gray tank I feel... But I actually just confirmed, it's only the bathroom sink that leaks. So I think it's a fitting in the pipe, but that pipe runs above the gray tank, which is where it starts leaking. The shower doesn't leak, nor does the kitchen sink. I popped my head under the sink, and I don't see any water under there. I don't think I can get to the pipe without taking the gray tank off and getting up in there?
__________________
eccentricson is offline   Reply With Quote
Old 09-17-2020, 08:37 PM   #7
Site Team
 
16ACE27's Avatar
 
Brand: Thor Motor Coach
Model: ACE 27.1
State: Florida
Posts: 7,523
THOR #7035
Quote:
Originally Posted by eccentricson View Post
Yeah, very weird place for the gray tank I feel... But I actually just confirmed, it's only the bathroom sink that leaks. So I think it's a fitting in the pipe, but that pipe runs above the gray tank, which is where it starts leaking. The shower doesn't leak, nor does the kitchen sink. I popped my head under the sink, and I don't see any water under there. I don't think I can get to the pipe without taking the gray tank off and getting up in there?
Almost all Thor bathroom sinks drain to the black tank, not the grey tank.
__________________
Ted & Melinda
2016 ACE 27.1
2016 Chevy Sonic Toad
2020 Chevy Colorado Z71 Trail Runner Alternate Toad
16ACE27 is offline   Reply With Quote
Old 09-17-2020, 08:40 PM   #8
Junior Member
 
Brand: Thor Motor Coach
State: Arizona
Posts: 15
THOR #19763
Quote:
Originally Posted by 16ACE27 View Post
Almost all Thor bathroom sinks drain to the black tank, not the grey tank.
Ahhh, that makes a lot of sense then! Thank you!
__________________
eccentricson is offline   Reply With Quote
Old 09-17-2020, 11:32 PM   #9
Senior Member
 
Model: Newmar Bay Star Sport 300
State: Alabama
Posts: 4,196
THOR #6826
Quote:
Originally Posted by eccentricson View Post
Ahhh, that makes a lot of sense then! Thank you!


Doesn’t really change your situation though. You still have a tank under the bathroom floor with a leak in the top! If you’re confident that it’s a fitting under the sink you might even get by without damaging the floor - if you can remove the vanity. Depends on where the leak actually is. Good luck.
__________________
Pete'sMH is offline   Reply With Quote
Old 10-28-2020, 10:20 PM   #10
Junior Member
 
Brand: Thor Motor Coach
State: Arizona
Posts: 15
THOR #19763
We got it fixed, it cost $500, but there was a pipe under the toilet but above the tank. So they had to take the tank off, and the toilet, to get it back into place. It's all fixed, stopped leaking, and it no longer smells! And I was mistaken, it was the black tank it was above, not the gray tank.
__________________
eccentricson 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


» Featured Campgrounds

Reviews provided by

Disclaimer:

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




All times are GMT. The time now is 02:06 PM.


Powered by vBulletin® Version 3.8.8
Copyright ©2000 - 2021, vBulletin Solutions, Inc.
Content Relevant URLs by vBSEO 3.6.0 PL2