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I own an older three family house that has these symptoms which is essentially gurgling in 2nd floor tub and basement tub/shower No complaints yet from third floor. More details are below. I am trying to determine if I start my investigation in the basement or upstairs (roof). Is there a case where a blockage in the basement would result in the 2nd-floor tub to gurgle? To get to roof I need to go up a crappy fire escape ladder 4 stories high so not loving that idea and to bring and equipment up there is going to be a real pain.
1)2nd Floor Tub Gurgle - 2nd floor tenant called me two days ago. Their tub was making a noise from time to time. The tenant actually thought it was cockroaches living in the pipe. I couldn't replicate anything but I thought maybe it was a gurgling noise. I ran tub, no bugs or issues were found. I have access hatch behind tub and everything sounded a looked ok there. The branch for this tub is old and in the past when I had tenants with long hair I would sometimes have to snake it. So may plan was to snake it tomorrow. The 2nd floor tenant gave the impression this was happening on and off before but she seemed to indicate it was increasing in frequency.
2)1st Floor Toilet was Slow - Toilet flush equals their shower gurgling - Today 1st floor/basement tenant messaged me.. Said their basement toilet was draining slowly previously in day. They said it seems okay now but that when they flush toilet their shower drain gurgles. Bathroom underground is about 10 years old with PVC that ties into the older cast stack. The toilet is closer to the street then the shower drain.
3)The third floor has not commented on any issues. No known issues in 1st floor bathroom.
This two gurgles seems to support a vent blockage above the 3rd floor tie in but I am not sure? One line of reasoning - if the blockage was above the 2nd floor then I think the blockage would also serve as a drain blockage for 3rd floor. Though maybe there is some case where there is a partial blockage of the stack that lets l water drain down but is to constricting to provide make up air for a toilet below it. Is there a way the issue could just be downstairs?
1)2nd Floor Tub Gurgle - 2nd floor tenant called me two days ago. Their tub was making a noise from time to time. The tenant actually thought it was cockroaches living in the pipe. I couldn't replicate anything but I thought maybe it was a gurgling noise. I ran tub, no bugs or issues were found. I have access hatch behind tub and everything sounded a looked ok there. The branch for this tub is old and in the past when I had tenants with long hair I would sometimes have to snake it. So may plan was to snake it tomorrow. The 2nd floor tenant gave the impression this was happening on and off before but she seemed to indicate it was increasing in frequency.
2)1st Floor Toilet was Slow - Toilet flush equals their shower gurgling - Today 1st floor/basement tenant messaged me.. Said their basement toilet was draining slowly previously in day. They said it seems okay now but that when they flush toilet their shower drain gurgles. Bathroom underground is about 10 years old with PVC that ties into the older cast stack. The toilet is closer to the street then the shower drain.
3)The third floor has not commented on any issues. No known issues in 1st floor bathroom.
This two gurgles seems to support a vent blockage above the 3rd floor tie in but I am not sure? One line of reasoning - if the blockage was above the 2nd floor then I think the blockage would also serve as a drain blockage for 3rd floor. Though maybe there is some case where there is a partial blockage of the stack that lets l water drain down but is to constricting to provide make up air for a toilet below it. Is there a way the issue could just be downstairs?