Matt Foster
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I have a tough one here. Brand new house (2 bath). The plumbing repeated clogs under the slab. We had a camera inspection that shows the tolite paper is accumulting around the Y coulpling where the two toilets come together. The camera also showed that as a tolite is flushed, the water level rises around the Y to 3/4 full (3" pipe, maybe 4") then slowly drains out toward the sewer. But as it is slowly draining, sometimes the tolite paper flows back toward the other tolite that was not flushed. Basicly it is taking the path of least resistance. Then as the water level in the pipe drains (takes about 40 seconds), the tolite paper is left sitting aournd the Y. This would leave me to belive that there is a low spot in the piping that would restrict the flow of the water, but the camera inspection shows no standing water in the pipes. The plumber who plumbed the house says no standing water rules out a low spot. The camera technition also had an crude ultrasound devise that showed a low spot around the problem area, but again, we see no standing water in the system. Any ideas? could it be a venting problem (all vents appear cut off on the roof). The lady who lives there says the problem is worse when she uses washer dryer or other sinks.