Forum Discussion
Dayle1
Jul 16, 2013Explorer II
cjoseph wrote:NJRVer wrote:cjoseph wrote:
The vent is not for the discharge of sewage. It is not a pathway for liquid. It is not an overflow. It was working perfectly fine. I'm sure air was passing quite well.
Who's to say the weight of the liquid didn't cause the vent stack to slip down. It wasn't designed to hold the weight of sewage.
I don't know how many vent stacks will hold the weight of sewage without slipping a little. They aren't put in that solidly.
The vent should have been glued into the tank.
For the vent to "slip down" the tank would have had to also drop down and pull the vent stack down with it.
A full black tank shouldn't have made the tank drop, it should have had the proper support to keep it in place when it is full.
I agree, but not a maintenance issue. That's a manufacturers defect, not the OP's fault.
The connection to the tank could be sound and the weight of the liquid caused it to slip down under the roof. The tank could sag. If the pipe had a turn, the pipe could sag. The OP can't maintain what is happening behind a wall. Either way glued or not, its not the OPs fault.
A vertical vent stack carries no additional weight when full of liquid and therefore should not slip down even if it wasn't glued or otherwise secured in place. However, if unsecured, it could certainly slip down from road induced impacts and vibration.
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