JB4310
Super Member
Well, I my toilet still gurgles. I poured three five gallon buckets of water down the toilet, no back up at all. Took the hose up on the roof today and ran it into the air vent for about a half hour with no back ups. Looked in the cleanout as the water was running. No backups from septic tank. I'm about out of ideas.
One possible cause,
If the toilet is not dumping (no pun) into the main sewer stack close by, then there may be a tee in the main vent for that toilet, in which case there would be a horizontal run of the waste line as well as the vent from that toilet, which could have some blockage in it. (Possibly no seperate vent with the horizontal run) when you were pouring water down the main vent on the roof it was just going past the tee down the main sewer.
JB.