It is an annual event where our sewer mainline will become plugged, causing sewage to backup into our downstairs bathroom shower and laundry room. It happens with enough regularity that the sewer guy and I are on a first name basis. Starting about three years ago, the frequency increased from once to twice per year. We had the sewer mainline unclogged early in December 2017 and, now, just this week, it clogged again. So, once again, I called up Juve, our sewer guy.
Juve was puzzled by the increased frequency and said, “It is always about 30-40 feet out that it is plugged. Can we look down the manhole in your backyard?” After we had popped the cover off of the manhole, he looked down and said, “Oh no! That is no good!” The city sewer was plugged! It was barely flowing and it was rising up the manhole.
The plugged city sewer would explain the increasing frequency of our mainline being plugged. We determined that probably what was happening is that when Juve would get his cable down 30-40 feet it would be at the point where our mainline entered the city sewer. He would then break loose the clog at that point and our mainline would drain. That would be good for awhile until something else plugged the mainline.
To remedy the plugged city sewer, we found a pole, about 20 feet long, and used that to push and move the sewage around. This broke up the clog in the city sewer, resulting in the sewage draining from the manhole.
After most of the sewage had drained out, we saw various items that had been part of the clog. Using duct tape, we taped a bow rake to the pole and used that to retrieve items from the manhole. We pulled up a corroded metal rod which was about three feet in length, a chunk of asphalt, a mass of tree roots, tampons, “flushable” wipes, plastic wrappers, fibrous pads of some kind, and other items that should never be flushed down a toilet.
I suspect someone dropped the metal rod through the hole in the manhole cover but I’m baffled by the chuck of asphalt. There was no way for it to get in there unless some had removed the manhole cover and then dropped it in.
Those two items, when combined with other items that do not break down, such as “flushable” wipes and plastic wrappers, were what it took to plug the city sewer. I don’t know where most of that junk came from because we don’t flush anything down the toilet except bodily waste and toilet paper.