Recently I had a reader ask what he should inspect when there is a tank backup. I took this question to mean what should be looked for when the system is backing up into the house, rather than simply a tank problem. Based on discussions over the years, this question is probably similar to requests that you come out to look at and fix a backed up septic system. The following are some of my thoughts on what to troubleshoot to determine the cause of the backup, which leads to the solution of the problem.
I would start by asking a
