Model # ZUPRDO128

Internet #202333071

Store SKU #338342

ZEP 1 Gal. Professional Strength Drain Cleaner
0021709012477

ZEP

1 Gal. Professional Strength Drain Cleaner

  • Pours through standing water to open tough clogs
  • Powerful, thick formula opens grease and hair clogs
  • Drain opener that's safe for all pipes and septic tanks

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Product Overview

The ZEP 128 oz. Professional Strength Drain Opener is a powerful, thick, fast-acting drain opener that pours through standing water to attack many types of clogs. Safe for pipes and septic systems, this drain opener treats 8 drains.

  • Attacks many types of clogs
  • 128 oz. container provides 8 treatments
  • Works in as few as 15 minutes
  • Liquid formula pours through standing water to attack the clog
  • Powerful, thick, fast-acting formula
  • Safe for pipes and septic tanks
  • Satisfaction guaranteed

Info & Guides

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Warranty / Certifications

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Customer Questions & Answers

Can I use this for slow-running toilets?

I heard many Drano products are not conducive for toilets.
Asked by: Crystie
I don't know. I presume it can't hurt. I don't know if 16 - or even 32 - ounces is enough volume to flow through the toilet trap which has more water than a basin trap - where it works well.
Answered by: Boxcar
Date published: 2016-02-04

Is it safe to pour this drain cleaner into standing bathtub water?

Asked by: Jws
Yes, you can pour this drain cleaner into a tub with standing water.
Answered by: CommunityAnswer
Date published: 2016-05-16

Can you use this for opening clogged washer drain pipes?

Asked by: Jay
This will open clogged washer drain pipes.
Answered by: CommunityAnswer
Date published: 2016-05-31

Is this product safe to use in a garbage disposal?

Asked by: Larry
Please refer to the packaging for usage instructions and a complete list of product warnings and safety recommendations.
Answered by: CommunityAnswer
Date published: 2016-09-07
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Customer Reviews

1 Gal. Professional Strength Drain Cleaner is rated 3.2 out of 5 by 41.
Rated 4 out of 5 by from Works on Hair and Soap Scum This is an Alkaline based drain cleaner (Bleach and Lye) which works well especially on sinks or shower drains which are clogged by hair and soap scum. This tends to be cheaper than other fancier foaming brands but I find it works just as well. The only other product I have used which worked better was some dry pellet form drain cleaner which I used in the middle east. It literally smoked and boiled in the pipes. Not sure if you can legally buy that in the US but it may be worth a shot if this product does not work for you.
Date published: 2013-07-21
Rated 2 out of 5 by from Vinegar worked better when it mattered most I've used this de-clogger on sinks with minor backup and it worked ok. But I had a shower that had lots of hardwater buildup and probably regular gunk too that was draining very slowly. After several treatments of the Zep, no change. So I tried a half gallon of cheap vinegar followed by boiling water, cleared the problem right up. And at least the much cheaper vinegar that's left over has many other uses. Why use an expensive industrial strength chemcial when a cheap, naturally occuring chemical works better?
Date published: 2013-07-13
Rated 1 out of 5 by from Product didn't work for me. I followed the instructions, but ultimately had to call the plumber. I was hoping I wouldn't have to do that.
Date published: 2013-07-24
Rated 1 out of 5 by from Junk I believe I jspent $11 for a bottle of bleach. That's what it looks and smells like. This stuff is junk, have used almost the entire bottle over the last two weeks with no success.
Date published: 2016-10-17
Rated 1 out of 5 by from Product Did Nothing Used almost the whole bottle and 24 hours later water is still standing in a bathroom sink.
Date published: 2016-09-25
Rated 5 out of 5 by from Worked exactly as promised Very stubborn drain - almost clogged to the point of no water moving (tub) at all. Nothing I had tried worked. I have used ZEP products in the past with great success. So I found their guaranteed clog remover in the plumbing section. Drain opened as stated on the packaging. Running free and clear now. Extremely pleased and will continue to use products by Zep - now I will go to them first!
Date published: 2011-12-10
Rated 5 out of 5 by from I used the whole thing My kitchen drain flow slowed to a drool after I churned razor clam guts in the garbage disposer. I snaked the drain to 25 feet to no avail. Not a plumber in the state was going to show up after 4 p.m. Friday, so I went to HD and bought this stuff. I poured in 24 oz (the bottle said 16) and retreated with the remaining 40 oz., following each treatment with 4 quarts of scalding hot water. The second treatment worked! I'm sure I saved at least $80 on a plumber weekend call. Whew! I'll be using Zep Drain Care monthly now. The clams tasted extra good!
Date published: 2013-03-30
Rated 3 out of 5 by from Required Second Application Had a very slow draining sink in the bathroom. Product eventually worked....But, required double the recommended dose and double the time.
Date published: 2013-04-02
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