Question:I read your article, “Tank Troubles”, (October 2010) and have come across a bad tank. I have a 10-year-old, two-chamber septic tank. The top of the second chamber has deteriorated to a thickness of 1 inch. This is obviously a safety issue as I am afraid it will fall through if a lawn mower goes over it. I was told this is due to hydrogen sulfide gas coming from the septic field. The first chamber is fine and I was told that’s because the gas is allowed to release through vent pipes that lead to the roof. I have not
