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Title: HATE IT!
Review: Bought this stuff for my shower drain which was draining very slowly. After using this a couple different times my drain was completely backed up and was draining extremely slow. I ended up pulling the drain cover off the floor and this stuff had completely clogged by drain pipe. It was as if the stuff just attached to the sides of the drain and crystallized there. There was only one very small opening for draining. Since I didn't have the money to call a plumber I had to scrape all that crap off the sides of the drain to clear the pipe. I would never use this again and I wouldn't recommend it to any of my friends.
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