Please help - being blamed for cat litter in the sewage line

Hello! I wanted to post over here to get some experienced insight into what the hell is going on with my apartment's plumbing. Over the years, I have had several incidents of sewage backup into my apartment that has been remediated through various means, usually jetting or snaking the line to clear the blockage. In February of 2020, the original cast-iron plumbing that's been here since the structure was built in the 1970s was replaced with PVC -- all except for, I just learned, the cross-line connection where our sewage line joins up with the neighbors. At the same time as the plumbing was replaced, our toilet was replaced with a low-flow vacuum flushing model. Since then, we've had a few more incidents with the plumbing. Each time, the plumbers report finding cat litter in the sewage line. We do have a cat, but we absolutely do not flush litter. We bag it up and take it to the garbage, every time. This most recent time, I actually called the plumber who said that while he suspected it was litter, he wasn't totally positive that's what it was. So my main question is, what the hell is it they're finding? Is it possible it's some kind of corrosion or mineral deposition, or clay from the water/surrounding ground (we live in Georgia where the ground is all clay). Is it possible that the cast-iron cross-line still has solidified litter that's breaking off or something? I'm at my wit's end and tired of being harassed for something we aren't doing. Thanks for your input, and I'm happy to clarify or elaborate on anything as required. submitted by /u/grammatiker [link] [comments]

Hello!

I wanted to post over here to get some experienced insight into what the hell is going on with my apartment's plumbing. Over the years, I have had several incidents of sewage backup into my apartment that has been remediated through various means, usually jetting or snaking the line to clear the blockage.

In February of 2020, the original cast-iron plumbing that's been here since the structure was built in the 1970s was replaced with PVC -- all except for, I just learned, the cross-line connection where our sewage line joins up with the neighbors. At the same time as the plumbing was replaced, our toilet was replaced with a low-flow vacuum flushing model.

Since then, we've had a few more incidents with the plumbing. Each time, the plumbers report finding cat litter in the sewage line. We do have a cat, but we absolutely do not flush litter. We bag it up and take it to the garbage, every time. This most recent time, I actually called the plumber who said that while he suspected it was litter, he wasn't totally positive that's what it was.

So my main question is, what the hell is it they're finding? Is it possible it's some kind of corrosion or mineral deposition, or clay from the water/surrounding ground (we live in Georgia where the ground is all clay). Is it possible that the cast-iron cross-line still has solidified litter that's breaking off or something?

I'm at my wit's end and tired of being harassed for something we aren't doing.

Thanks for your input, and I'm happy to clarify or elaborate on anything as required.

submitted by /u/grammatiker
[link] [comments]