[wengang1]

Hi all.
There's a lot I may be doing wrong here, but after I did significant pipe replacement, supply and waste lines, I developed the problem of the toilet frequently being stopped up, but fixing itself, accompanied by glugging and bubbling in the toilet at random times, and especially after a shower.

I assume there is a blockage in the line. When I was replacing a section of the main line to the septic tank, the whole system was so rigidly in place that I didn't have enough flexibility to get the coupling on the pipe. In my final effort, I heard a popping sound by the foundation wall where the pipe runs out of the house. I don't know if it cracked or broke a coupling, but there is concrete poured over the pipe for a short distance either side of the wall. Anyway, the problem started there, so I assume I need to run a new pipe through the wall to repair the damage. I'm just wondering if it is ok to bury PVC pipe with a glued coupling. If not, do I have to uncover the line all the way to the septic tank?

Also, does this assessment sound right, or could there be a simpler reason for the weird toilet/shower thing happening?

Thanks.

 

[rjniles]

Sounds more like a blocked vent.
Glued couplings in underground PVC is fine.

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[joed]

No problem with a buried glued coupler on a PVC.

When was the last time you opened the septic tank and inspected/pumped it. Sounds like a possible full tank either due to sludge build up or water logged drain field not letting the tank drain.

 

[carpdad]

I think flexible, rubber seal, called no-hub or hubless couplers are ok underground as well.

To make glue joint, you must be able to move the pipe away from the joint. I am not a plumber but never have seen pvc glue joint that can be slipped on one side and slid over to complete the joint. Glue also sets up very quickly.



If I may, can I ask a question, to the forum? Above video says 60 pounds for tightening the band clamp. I have 40 pound dedicated t-wrench and always believed 40 was the number. Why 60 pounds?

 

[wengang1]

The coupling just coming in from the foundation wall had indeed popped, and was so brittle, I had to chip it out. All good now, except for vent stack (new thread). Thanks, all.