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Model #ZLDC648

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64 oz. Drain Defense Liquid Pipe Build Up Remover

  • Enyzme Drain Cleaner Restores Flow and Prevents Future Clogs
  • For Use on Sinks, Showers, Drains, Septic Systems and More
  • Pipe and Septic Safe Solution Provides 21 Months Drain Protection
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Product Overview

They say an ounce of prevention is worth a pound of cure, especially when it comes to drain care. ZEP drain defense liquid pipe build up remover clears clogs in stopped drains and helps prevent future clogs. This enzyme drain cleaner features a concentrated, enzyme-based formula that breaks down years of drain-clogging build-up to open slow drains. The certified biodegradable formula is ideal for sinks, toilets, showers, disposals, drains, and septic tanks. As it works to clear your pipes, this home drain cleaner will break down into carbon dioxide (CO2), minerals and water. The product comes in a 64 oz. bottle and is recommended for monthly use to maintain pipes in the home. Directions: 1: Establish a partial flow removing debris from drain stopper. 2: Run warm water for 1-minute to warm pipes. 3: Pour 1 oz. of drain defense pipe build-up remover into drain. 4: Flush with 16 oz. warm water. 5: Do not use any drains for 6-hours. 6: Repeat for 3-days or until drain flows freely. Note: for faster results, use 8 oz. of ZEP drain defense liquid pipe build up remover followed by 16 oz. warm water.
  • Pro tip: apply the 3-day treatment described above once a month to keep drains clean
  • Safe to use in: sinks, showers, drains, toilets, garbage disposals, septic tanks, RV's and grease traps
  • Enzyme-based formula breaks down drain-clogging elements
  • Drain cleaner provides 21 months of drain protection
  • Enzyme drain cleaner that is performs best when used monthly to prevent clogs, slow drains and restore water flow
  • Safe for all pipes and septic systems
  • Breaks down into CO2, minerals, and water
  • Prolong the life of your sprayer: thoroughly rinse bottle and spray clean water after use and before storage or reuse

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BrandZEPZEP Green Gobbler
Name64 oz. Drain Defense Liquid Pipe Build Up Remover1 Gallon 10 Minute Clog Remover Drain Opener GelGreen Gobbler 1 Gal. Main Line Cleaner and Clear Drain Opener1 Gal. Drain Clog Dissolver
Chemical FormLiquidLiquidLiquidLiquid
Commercial / ResidentialCommercial / ResidentialCommercial / ResidentialCommercial / ResidentialCommercial / Residential
Compatible Pipe MaterialPVCPVCMulti-PurposeMulti-Purpose
FeaturesNo Additional FeaturesNo Additional FeaturesLow Odor,Rapid Desolving,Safe for garbage disposalNo Additional Features
Container Size (oz.)64128128128
Pack Size1111
Product Depth (in.)3.415.256.5 in6 in
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Product Depth (in.)
Product Height (in.)
Product Width (in.)


Chemical Form
Commercial / Residential
Commercial / Residential
Compatible Pipe Material
Container Size (oz.)
Drain Cleaners Type
No Additional Features
For Septic Use
Septic Safe
Maintenance, Repair & Supplies Product Type
Drain Openers & Chemicals
Number of treatments per container
Pack Size
Prevention formula
Protects pipes from corrosion
Safe for garbage disposals
Set Time (Min.)
Type of Issue

Warranty / Certifications

Certifications and Listings
No Certifications or Listings
Manufacturer Warranty

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Customer Reviews

  • 4
    out of 475 reviews
  • 78%recommend this product
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Showing 1-10 of 475 reviews
    I recently purchased some from Home Depot, and the correct instructions on the back have been rem...
    I recently purchased some from Home Depot, and the correct instructions on the back have been removed and replaced by two illustrations that tell you the wrong way to use it. The product is supposed to sit for 6 hours, and the instructions now just say to add an ounce of Zep and run warm water. Someone messed up. If you buy this, follow the instructions above, or look for them online. Using this the way they say on the bottle is just pouring money down the drain.
      • Recommended
      31 people found this helpful
      Clean drains
      Drains are our best friend or worst enemy. Preventive care before they become a major problem is the best way to deal with them. This product from the well known and trusted cleaning product company gives us a new tool to defend our selfs from pipe build up. Using enzymes instead of harsh chemicals for the clearing and maintence of our household plumbing. There is over 64 treatments in one bottle.
      • Recommended
      15 people found this helpful
      Works Well But Takes a While
      This ZEP 64 oz. Drain Care worked well but it is important to note that it is NOT a clog remover. I used this on on my wife's sink in our master bathroom. She always rinses her hair down the sink which slowly builds up and slows the drain. After running hot water for a couple of minutes, I poured 8 oz. of Drain Care down the drain, then followed that with 16 oz of hot water. It's best if you let it sit for about six hours. I let it sit the entire day while we were at work. The drain now flows with no backup at all. Drain Care works well just remember it's not for clogs but more for maintenance.
      • Recommended
      43 people found this helpful
      Rating provided by a verified purchaser...
      Rating provided by a verified purchaser
        A good product
        Works fine. Is always dependable and easy to use.
        • Verified Purchase
        • Recommended
        Works well and economical too....
        Works well and economical too.
                Showing 1-10 of 475 reviews