"I started using Septifix after seeing the wonders it worked at my brother's house. Even my grandchildren hated coming to visit, as my daughter - their mother - wouldn't allow them to play near the septic tank because she was afraid they might get sick. And since the cost of a repair was not an option, I bought 2 boxes of Septifix tablets... Enough to last a year! After just 3 days, the smell was gone! The standing water in the septic tank lid disappeared in about 5 days. I'm very happy and grateful because a septic tank repair would cost me thousands of dollars!" J.