Betterbilt Chemicals Kleen-Out Sulfuric Acid Drain Opener, 32 fl oz (1)

For years, a clogged drain meant a trip to the hardware store to buy yet another expensive product promising to unclog pipes. "Kleen Out" has a sulphuric acid component clearing whatever debris is blocking free flow and it works every time. Additionally, I generally wait ten minutes then make good use of a rubber plunger.FYI - Wear rubber gloves and stand back when pouring as this has a very strong, unpleasant odor.Laura P.

Sulfuric Acid creates fumes open all windows and run the fan. not safe it damaged my sink but it finally unclogged my drain after days of trying everything. use the whole bottle pour into sink fill with water and leave it alone don't run the water for 12 hours. In the middle of the night, I heard bubbles then swoose no clog.

Works good on clogs, will discolor drain and stopper

I tried every product out there and none of them worked. This stuff is dangerous and wouldn’t use it on cast iron but it did the trick. I did end up using the whole bottle though.

Use the entire bottle. Open a window. Wait 10 mins and flush with water for 10 mins. Done.

Tried using as directed and saw no results on my slow drain. Tried a second application with a little more product and let it sit longer. Still no resolution. Finally I poured the remaining product down the drain and let it sit an hour. You guessed it.....no resolution.I just went back to vinegar and backing soda. This worked better.Save your money.

Well I first followed the 3/4c amount stated in the instructions and waited 15minutes, but my tub was still low. I repeated the steps and it was still slow. I finally decided to just pour the whole bottle into the drain, left it for about 30 minutes and like a miracle! I guess if you live in an upstairs bathroom you should use the whole bottle since obviously the pipe will be longer (didn’t account for that the first two times). Anyway, it worked so I will purchase this item again. Hopefully not too soon though.

1/2 bottle no worky1/2 bottle no use yet