Sunline RV Forum
Sunline User Photos

Go Back   Sunline Coach Owner's Club > Technical Forums > Repairs and Maintenance
Click Here to Login

Join Sunline Club Forums Today


Reply
 
Thread Tools Search this Thread Display Modes
Old 09-23-2013, 07:33 PM   #1
Senior Member
 
Join Date: Jun 2013
Location: Wisconsin
Posts: 161
SUN #5245
Anita1 is an unknown quantity at this point
black tank smell is getting into the camper

Hi,

I have a 1700 camper. Recently, the black tank smell is getting into our camper. We first noticed it after we drove down the road, got in the camper and it stunk. Then the smell went away. Drove down the road again, got in the camper and it stunk again. Then the smell went away. Last time it happened the smell did not go away. My husband went to the roof and he said the vent pipe cap had fallen down. He pulled it up and secured it better with the screw. The smell got better but then came back again. Finally he removed the cap and then the smell went away. I asked him if the pipe had fallen down in the tank (as suggested a different time) and he said it looks ok...but he really doesn't know what it should look like. If the pipe fell, would it look obvious? Any suggestions?
__________________

__________________
Anita1 is offline   Reply With Quote
Old 09-24-2013, 08:23 AM   #2
Senior Member
 
OhhWell's Avatar
 
Join Date: Feb 2011
Location: Florida
Posts: 213
SUN #1879
OhhWell is an unknown quantity at this point
If your vent pipe has dropped far enough to touch bottom, it would be very obvious from the roof as there is only about 2 inches or so of exposed pipe between the bottom of the cap and the roof usually. If it has only dropped a little, it could get occluded by the liquid in a full tank. It's not very likely that it did drop but always possible.

Now as to the smell in the camper.... Even if you are not venting properly, you should not be smelling that smell in the camper if everything is right. Luckily, black tank plumbing is pretty simple. The most likely culprit is the foam seal between the toilet and the flange. They all get brittle and go bad but are very simple to replace. The next possibility is the seal on the flush mechanism on your toilet but if that is bad, you would notice that water is not staying in the bowl.

If it is not those simple things, then it would be a seal somewhere in the PVC pipes. The flange is screwed right onto a stretch of pipe that is usually straight and short and is in turn screwed into the black tank. The points at which the components are connected are below the floor and usually are fine.

The last possibility is that the vent pipe is leaking gas either where it connects to the black tank or along its length if it is not a single piece of pipe all the way to the roof. It is usually in a wall or behind trim and a cabinet.

It's almost always the foam seal though.
__________________

__________________
Current RV - 1999 Bounder 36s

Former trailers - '94 T-2770
'02 t-2753
'08 Keystone Sprinter 299BHSS
OhhWell is offline   Reply With Quote
Old 09-24-2013, 09:15 AM   #3
Senior Member
 
Join Date: Jun 2013
Location: Wisconsin
Posts: 161
SUN #5245
Anita1 is an unknown quantity at this point
Ohhwell, thank you for your assistance. I will check the things that you listed. We replaced the toilet this year so it probably isn't the toilet itself. It might be the seal, like you said.

We spend more time working on this camper then actually camping....arghghghghgh.
__________________
Anita1 is offline   Reply With Quote
Old 09-24-2013, 09:16 AM   #4
Senior Member
 
Join Date: Apr 2011
Location: Maine
Posts: 2,992
SUN #2097
mainah is an unknown quantity at this point
My T1700 had the same issue but it turn out it had nothing to do with venting I was about to replace the toilet gasket because the water would stay in the toilet so that pretty much meant the seal was good. As I started to remove the bolts holding the toilet down one was quite loose I tightened both and that was the end of the smell. I may at some point just replace the gasket but for right now it's fine.
__________________
mainah is offline   Reply With Quote
Old 09-24-2013, 09:20 AM   #5
Senior Member
 
Join Date: Jun 2013
Location: Wisconsin
Posts: 161
SUN #5245
Anita1 is an unknown quantity at this point
Mainah,

Thanks for the suggestion I will look into that also.

Anita
__________________
Anita1 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
Black tank repair jim44646 Repairs and Maintenance 11 08-24-2016 08:29 PM
Black tank JoeT Repairs and Maintenance 8 08-27-2013 08:36 AM
Black tank leaking... EMD_Driver Repairs and Maintenance 15 06-06-2011 10:40 PM
Black Tank MOKID Repairs and Maintenance 1 06-14-2010 09:05 PM
Black Tank Drain ? Chef Ron Repairs and Maintenance 2 07-09-2008 05:03 PM


» Featured Campgrounds

Reviews provided by

Disclaimer:

This website is not affiliated with or endorsed by Sunline RV 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 04:07 AM.


×