Instant Power 128 oz. Main Line Cleaner-1801 - The Home Depot

Instant Power

Model # 1801

Internet # 100126446

Store SKU # 160577

128 oz. Main Line Cleaner

Instant Power 128 oz. Main Line Cleaner

This item has been discontinued.
The Home Depot no longer carries this specific product.

$10.98 / each
  • Odorless and fumeless
  • Powerful formula dissolves hair, grease and more
  • Use entire gallon in one application


Model # 1801

Internet # 100126446

Store SKU # 160577

Instant Power Main Line Cleaner clears clogged main sewer lines and lateral/vertical lines. Powerful, non-acid formula dissolves hair, grease, paper and other gunk in drains. Safe for all pipes (including PVC) and septic systems.

  • Clears clogged drains
  • Opens main sewer and lateral lines
  • Safe for all pipes and septic systems
  • 8 hour set time

Info & Guides

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Assembled Depth (in.)  6 in  Assembled Height (in.)  12 in 
Assembled Width (in.)  6 in 
Chemical Form  Liquid  Commercial / Residential  Commercial / Residential 
Compatible Pipe Material  PVC  Hazardous Code  Cannot Ship Air. 
Maintenance, Repair & Supplies Product Type  Drain Openers & Chemicals  Number of treatments per container 
Prevention formula  Yes  Protects pipes from corrosion  No 
Quantity (oz.)  128  Safe for garbage disposals  No 
Set Time (Min.)  480 
Warranty / Certifications
Manufacturer Warranty  100% Money-back satisfaction guarantee 


Rated 4.3 out of 5 by 87 reviewers.
Rated 5 out of 5 by a chemical cleaner that really works!!!! About every year or two we would have a backup in our main line and had tried various chemical treatments, but none of them had worked. My brother is a plumber and would have to snake the almost 100 ft. main line which usually took 2 hours each time to free the blockage. He suspected there was a belly in the line somewhere that would accumulate grease, debris, toilet paper, and other things that would normally break down quickly. My wife read about this product and I bought 2 gallons to try. I poured both gallons in at night and in the morning poured about 4 gallons of boiling water followed by hot water. After a couple minutes it backed up again. I waited 10 more minutes and checked, to my amazement the water had receded. Followed by 10 minutes of hot water and the line is clear. Now I don't have to call little brother the plumber except to tell him this product works!!!!!!!! January 4, 2014
Rated 5 out of 5 by It worked for me! I'm really not one to write reviews especially a favorable one but this product cleared my very very slow main drain and saved me a lot of $$! My drain is a bit irregular and hard to auger out. But used 3 gallons let it set 8 hours followed by l ots of hot water Drain is running great. Its great to find something that really works! Be careful and wear at least goggles and gloves. Best of luck. Mike December 8, 2014
Rated 5 out of 5 by Wonderful Stuff!! I live in a 40+ year old house and have pets so the plumbing gets clogged or sluggish regularly - usually from pet hair in the laundry. The first time I called those Rooter people and they charged $125 to snake out the line. The second time I called them, they wanted $250 to do the same thing so I sent them away and went to Home Depot. I saw this stuff and bought 2 gallons. Poured it down the laundry drain and it worked like a charm. $22 vs. $250. I call that a bargain. Now I use it about once every 3 years and haven't had a problem since. November 2, 2014
Rated 2 out of 5 by Did not work Bought 2 gallons of this stuff and used it as directed. It would not clear the blockage which was about 40 ft down the 4" main line under the crawl space of my home. It was not possible to drain the water in that line prior to pouring cleaner into the sink. So the 2 gallons were diluted with all that water that was already in the line making it ineffective. I ended up buying a 50 ft snake to fix the problem. I would have given them a lower rating but they sent me a refund about 2 weeks after I sent my receipt in. December 8, 2014
Rated 5 out of 5 by It really works I remember the day it happened. A Sunday. The sun was shining, the birds were singing, breakfast was ready, football was about to come on and then things got real dark real fast. The washing machine entered its drain cycle followed quickly by an horrible gurgling, bubbling sound coming from the bathtubs and showers. All kinds pestilence, debris and things I will not even try to describe were flowing in the absolute most opposite way one could imagine. And then nothing. I stood there in shock. I was adding up what it would cost to bring out a plumber on a Sunday to make that soup of death go away. That frightened me even more. I frantically went to work with a plunger. Nothing! It was the mother of all stoppages. I knew there had to be a easy solution. A quick search online for "Main Line Cleaner" led me to this product at Home Depot. I was skeptical. I read the reviews and hoped that everything I read was true. I poured it into the bathroom sink at 2 PM. Hoping I didn't just buy into a bunch of hype. The hours ticked by. Nothing. No movement whatsoever. The pool of disgust just sat there in my tubs mocking me. I decided to retire for the day at 9 PM. It was not going to be a peaceful sleep knowing what was lying in my bathrooms. And then it happened..... It was 9:30 PM. A death groan of the monster that had plagued me all day, followed by a rushing sound of of all that horrible mess going away. I jumped out of bed and prepared a giant pot of boiling water to rinse out all that was left behind. I filled the tubs with hot water and drained them both at the same time to finish the purge. It was done. I won. I couldn't believe it. It really works. Finally something that does what it promises. October 14, 2013
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Store Exclusive. This item is available for purchase in select stores only.