Drano Dual-Force Foamer Clog Remover, 17 fl oz - 2 Pack

It works great. I used it in my tub drain, unclogged it within an hour. The tub drained perfectly. I recommend to anyone who needs to unclog a drain.

Just as described 30 minutes and done, my daughter being helpful made breakfast but... dumped the bacon grease down the drain after coming back from the beach it was draining slow so we Draino'd and in less than 40 minutes we were flowing. We used the half bottle amount.