(2 pack) Drano Max Gel Drain Clog Remover, 160 Ounces, 2 Count

One of the best for stubborn clogs (not requiring plumber intervention) .... Rarely requires multiple treatments. Works on all drains .... Says not to use on toilets, but, when used properly and not combined with a plunger the product will effectively clear "normal" clogs (not involving foreign objects).

This product works VERY well. I use it in the discharge drain from the washing machine to rid the pipes of lint and soap residue. It has a thin consistency to it, so it can travel farther in the drain pipes. Just pour the bottle in the drain, let it sit 20-30 minutes, and flush with hot water. I have PVC pipes. You think they would never clog, but they build up muck just like any other drain pipe. After flushing the drain, I re-install the washing machine drain hose and run a hot water cycle. You can actually hear the difference the way the drain is working ! I use this on a monthly basis to avoid a backup. That would be a lot of soapy water to mop up. Peace of mind. Just read the directions regarding other types of pipes. But for PVC, you can leave it in overnight if you wanted too. Good stuff.