I had a guy come out from this company, and he tried one thing, and it didn't work, so he said he didn't know what to tell us. The good thing is that he gave us our money back. But we had another plumber come out, and he found the real problem right away and fixed it. I just wish the 1st guys (rootmaster) who came out would've fixed it. They have the best prices, but I guess you get what you pay for.