We have a second home on the shore next to the bay. We spend time in the summer there. We use it intermittently throughout the year. Sometimes relatives or friends will be in the area, and they will stay there. The sewer line was running slow, and we had a company that does sewer cleaning in Hudson County, NJ come out to inspect it and clean it. Their camera revealed toilet paper and other solids that were like plaster built up inside the sewer line at one of the joints in the line. They said it looked like a small burr in the plastic line was catching toilet paper. more_link_text