Zep Drain Defense Pipe Build-Up Remover - 64 Ounces - ZLDC648 - Professional Strength Liquid Pipe Build Up Remover,GREEN

Zep is my 'go to' for a clogged toilet. Might not work on first try ... or second ... even third ... BUT it eventually works and isn't as 'messy' or gross as using a snake. ~half bottle, 12 hour wait, HOT water chaser for 15 minutes ... flush *use when the house has multiple toilets because the clogged toilet will be unavailable **IF you need immediate results, use a snake or call a plumber

This was recommended by my plumber. Works very well. Easy to use, pleasant smell. Reasonable price, speedy delivery.

I am giving this four stars because I am not completely sure whether it works as intended. I originally meant to buy Drano to clear a slow bathroom sink, but this product was recommended instead. It is a liquid, not a gel, so it goes straight down the drain rather than sitting in the pipe like thicker clog removers do. Because of that, it may be effective for general pipe buildup or maintenance. However, I did not find it to work as well as Drano when it comes to removing an actual clog. If you are looking for preventative maintenance, this may be a good option. For tougher clogs, a gel formula might be more effective.

I thought that my sink's water supply had magically gained an on again off again sulfur smell. Turns out, there was just something growing in the drain, and that water was disturbing it, causing the sulfur smell to waft upward. Leaving this in the drain for a few hours fixed that problem. Throwing this down the kitchen sink drain may have killed off a gnat issue as well. I'd frequently wake up to two or three gnats hanging out near the kitchen sink. But after a treatment of this stuff, no gnats. ...or whatever the tiny winged bugs were. They were slow enough to easily swat / squish manually.

Did nothing!! I had a full sink of water 100% blocked. This stuff did nothing. BUY LIQUID PLUMBER URGENT CLEAR!! I poured a bottle in and this stuff clear the block guarantees 7 minutes

Works ok, not the best but not the worst.

We have a creative drain run from our 2nd floor tub. Despite installing a drain "octopus" to prevent hair from entering the drain line, from time to time (a matter of weeks) the drain would slow and the tub would slowly fill up during a shower. I expect it was build up of hair conditioner and who knows what else type of moisturisers my GF uses. As a result I had ro run the snake through the drain line perhaps at 6 week intervals. I tried this Zep product to keep the drain clean. Much to my surprise, IT WORKS PERFECTLY. I just have to remember to use the product at monthly intervals or the drain begins to slow once again. Zep stuff is pretty trustworthy. I learned this as a purchasing manager tears ago. There stuff is not bargain priced, but it does exactly what it says it will. I was a little skeptical when I first tried this. It was a big bottle but on the flip side, it works and that bottle will lat me a very long time when used as directed. If you are having drain problems similar to mine, get this stuff, it works and isn't a caustic and/or environmentally harmful product.

I live in a mobile home. My kitchen drain pipes go all the way to the back of my unit to the main sewage 4" pipe. I had a slow drain, beginning to be a clog. I used this, leaving it in the pipe over night. It worked great. I treated it 2 nights in a row and I have no more issues.