Best Root Killer For Septic Tanks

Peter | 25-12-2025

Navigating the many Best Root Killer For Septic Tanks options on the market – from major brands like Roebic,Sanco Industries,Zep,Green Gobbler,ADIOS! to lesser-known names – can feel overwhelming. But we’re here to help simplify your search for the best products.

After extensive research testing hundreds of Best Root Killer For Septic Tanks, we’ve selected the top contenders. Our number one recommendation is Roebic Best Root Killer For Septic Tanks based on its stellar performance and quality. Below you’ll find more of our top-rated picks for the best Best Root Killer For Septic Tanks currently available.

Be sure to consult our handy buying guide as well for expert tips on choosing the right Best Root Killer For Septic Tanks to suit your individual needs. It has all the crucial information you need to make an informed purchasing decision. With our guidance backing your choice, finding your perfect match will be smooth sailing!

Editor's Choice
Roebic K-77 Granular Tree Root Killer, Chemical Septic System, Drain Field and Sewer Line Pipe Clog
Roebic K-77 Granular Tree Root Killer, Chemical Septic System, Drain Field and Sewer Line Pipe Clog
Premium Pick
Root Destroyer - 5lbs - Root Killer for Sewer, Pipe & Drain Lines, Septic Tanks and Septic Systems -
Root Destroyer - 5lbs - Root Killer for Sewer, Pipe & Drain Lines, Septic Tanks and Septic Systems -
Budget Pick
Roebic FRK Foaming Tree Root Killer, Chemical Septic System, Drain Field and Sewer Line Pipe Clog
Roebic FRK Foaming Tree Root Killer, Chemical Septic System, Drain Field and Sewer Line Pipe Clog

Top 9 Best Root Killer For Septic Tanks

We researched and compared the top products in the Best Root Killer For Septic Tanks category to provide you with these recommendations.

1. Roebic K-77 Granular Tree Root Killer, Chemical Septic System, Drain Field and Sewer Line Pipe Clog

  • KILLS ROOTS IN SEWER AND SEPTIC PIPES: Roebic K-77 Root Killer clears existing roots and stops new growth fast from sewer and septic pipes, keeping lines free from clogging tree and shrub roots
  • PREVENTS RE-GROWTH: The K-77 copper formula chemically kills roots at the point of entry into pipes to prevent re-growth, improving drainage and flow
  • SAFE FOR ALL PLUMBING: Root Killer is non-corrosive and safe for all types of plumbing and will not harm surrounding trees, ground cover, or the natural bacteria content in septic tanks and cesspools
  • EASY TO USE: Use every 6 to 12 months
  • REAL RESULTS: Use K-77 Root Killer to maintain your system and help avoid the inconveniences that result from root clogs such as back-ups and surface break outs
  • Destroys clogging roots fast
  • Safe for all plumbing. Will not harm septic tanks
  • Saves costly digging and rooter service
  • Not for sale in Connecticut, Massachusetts, the Bay counties of California
  • Banned for use in Septic Systems in Florida

2. Root Destroyer - 5lbs - Root Killer for Sewer, Pipe & Drain Lines, Septic Tanks and Septic Systems -

Root Destroyer - 5lbs - Root Killer for Sewer, Pipe & Drain Lines, Septic Tanks and Septic Systems -
9.5

Sanco Industries

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  • Made up of copper sulfate crystals that will kill invasive septic and sewer pipe roots without harming your tree.
  • Roots can cause significant damage to sewer lines, leading to blockages, backups, and costly repairs.
  • Root Destroyer will temporarily reduce bacterial action, but will return to normal approximately 15 days after treatment.
  • Only roots inside the leach line will be killed. Do not apply through sink or tub drains.
  • Use Root Destroyer at the rate of 2 lb. in an active 300 gallon septic tank 2 twice a year or anytime you have reduced water flow thought to be caused by root growth occurs.
  • In 1/2 lb. increments, pour Root Destroyer into the toilet bowl nearest the sewer line and flush; repeat this process until the recommended dose has been added.
  • Regular use of a root killer can help to prevent root growth and extend the lifespan of sewer lines, saving money and reducing the need for costly repairs.

3. Roebic FRK Foaming Tree Root Killer, Chemical Septic System, Drain Field and Sewer Line Pipe Clog

  • PREVENT CLOGS AND BACKUPS: Eliminate root problems with Roebic Foaming Tree Root Killer. Patented formula foams on contact to fill pipes, remove clogs, and prevent costly backups
  • POWERFUL ROOT-REMOVING FORMULA: Our sewage line root killer features the powerful agent dichlobenil which works to inhibit new root growth in the entire pipe line
  • KEEPS SURROUNDING TREES SAFE: Our chemical drain opener won't harm surrounding trees during use, ensuring that the environment remains protected during application
  • SAFE FOR ALL PLUMBING: Works on all household plumbing and contains no copper. Keeps pipes clear without harmful chemicals. Great for families maintaining pipelines regularly
  • EASY TO USE: Our tree roots killers are easy to use, simply pour the entire contents into your toilet and flush! Restrict water usage for 4 to 6 hours, flush 2 to 3 times depending on the toilet

4. Zep Root Kill - 2 Lbs (Case of 4) ZROOT24 - Root Control in Septic Tanks and Leach Lines

  • Root Kill has been known to be an effective means to control roots in residential sewers.
  • Usually, within 3 to 4 weeks, after roots have accumulated sufficient copper sulfate, the roots will die and begin to decay and water flow should increase.
  • Do not apply Root Kill through sink or tub drains as it will corrode metal drains.
  • Will temporarily reduce bacterial action, but it will return to normal approximately 15 days after treatment.
  • Make no more than 2 applications per year.

5. Green Gobbler, FOAMING Root Killer | Kills Tree Roots in Pipes & Sewer Lines | Contains No Copper

Green Gobbler, FOAMING Root Killer | Kills Tree Roots in Pipes & Sewer Lines | Contains No Copper
8.7

Green Gobbler

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  • KILL ROOTS THAT CAUSE CLOGS: Green Gobbler Foaming Root Killer helps dissolve tree roots growing inside pipes. It clears clogs, prevents regrowth and won't damage the tree if used as directed.
  • SAVE MONEY: Root removal can be costly. Instead of paying to physically cut out roots over and over again with no lasting results, pour Foaming Root Killer into your toilet or sewer cleanout. The formula travels down pipes to eliminate roots and prevent future growth.
  • PREVENT REGROWTH: Foaming Root Killer can be used to prevent roots from entering and regrowing inside your pipes. This helps get rid of the problem now and potential root problems down the road. Follow maintenance directions for best results.
  • SAFE FOR PIPES & SEPTIC: Green Gobbler Foaming Root Killer is safe for your pipes, septic systems, soil and trees. Follow instructions to ensure the correct amount of product reaches tree roots. Our formula contains no copper sulfate.
  • GREEN GOBBLER GUARANTEE: Green Gobbler cares about its customers. We take pride in developing innovative & effective products for your home or business. If for any reason you are unsatisfied, we offer a money-back guarantee within 30 days of purchase.

6. Adios! Sewer and Septic Root Killer for Trees and Shrubs, Copper Sulfate Formula Protects Sewer

  • PROVEN ROOT KILLER Copper sulfate based formula is EPA approved and formulated specifically for killing tree roots and shrub roots. Works on all tree types that include maple, pine, oak and others.
  • FOR SEWER LINE AND SEPTICS Kills roots in main lines, sewer and septic lines, and drain and leach fields. Protect and prevent damage to your septic systems!
  • PREVENTS REGROWTH Stops roots from regrowing in lines and pipes with existing root growth. Bi-annual use of Adios! Tree Root Killer will ensure tree roots do not have time to take hold and cause additional damage or breaks.
  • TREES AND YARD SAFE Will not kill or harm trees. Our formula is designed only to stop and prevent root growth and will not injure or hurt trees and shrubs. Registered under EPA establishment number 72838-IN-003
  • SEPTIC TANK APPROVED Adios! Tree Root Killer is designed to be safe to use in septic systems and drain fields. Plus, our formula will not affect septic tank bacteria or enzymes.

7. Septic Tank Treatment - 1 Year Supply of Septic Safe Dissolvable Easy Flush Live Bacteria Packets

Septic Tank Treatment - 1 Year Supply of Septic Safe Dissolvable Easy Flush Live Bacteria Packets
8.9

Septic Treatment By Cabin Obsession

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  • YOURE JUST ONE FLUSH AWAY FROM A HEALTHY SEPTIC SYSTEM! Our monthly easy flush dissolving packets are specially formulated to help break down waste and maintain a properly functioning septic system. This is the easiest and most efficient way to prevent expensive septic tank backups and drain field repairs. Just flush one packet down your toilet each month!
  • SCIENTIFICALLY SELECTED BACTERIA CULTURES. Each packet contains billions of active bacteria cultures that are scientifically selected to produce, activate, and recharge the enzymes needed to reduce solids and decompose the different types of waste found in both the sludge layer and scum layer of your septic tank, and even out into the leach field.
  • ALL NATURAL, ENVIRONMENTALLY FRIENDLY, & MADE IN THE USA. Each flushable septic treatment packet is all natural, with no chemical additives. Theyre safe for all home plumbing lines, any black water system or cesspool, and both aerobic and anaerobic septic systems, so flush each packet down your toilet with absolute confidence!
  • ELIMINATES ODOR, AND GREAT FOR YOUR RV AND BOAT TOO. Not only is this the best way to maintain a healthy residential septic system, but our concentrated formula dissolvable enzyme pouches are also ideal for use in marine holding tanks and camper toilets too! And because of the advanced digestion rate of odor causing bio organic wastes, they aid in controlling and getting rid of bad smells too. Your nose will thank you!
  • PREVENTS EXPENSIVE SEPTIC BACKUPS AND REPAIRS. A small investment in our septic tank treatments help to prevent clogs and bulky buildup that causes septic overflow. The billions of bacteria in each packet digest solid waste, converting it to liquid, preventing costly repairs and frequent pumping.

8. ROOTX - 2LB. JAR with Funnel/APPLICATOR Foaming Root Control for Sewer Lines and Septic Systems

  • ROOTX - 2LB. JAR WITH FUNNEL/APPLICATOR
  • EPA Accepted
  • Easy to Apply
  • Treats 50 ft of 4" pipe
  • Eliminates tree root blockages in sewers
  • RootX jars are designed for a single use application
  • Will not immediately open a blocked sewer line

9. Roebic FRK Foaming Tree Root Killer, Chemical Septic System, Drain Field and Sewer Line Pipe Clog

  • PREVENT CLOGS AND BACKUPS: Cut down on severe recurring root problems and keep your pipes running smoothly with our Roebic Foaming Tree Root Killer! Our root destroyer is a patented product which will foam on contact with water to fill the entire pipe line, and is used for removing clogs and preventing costly backups
  • POWERFUL ROOT-REMOVING FORMULA: Our sewage line root killer features the powerful agent dichlobenil which works to inhibit new root growth in the entire pipe line
  • KEEPS SURROUNDING TREES SAFE: Our chemical drain opener won't harm surrounding trees during use, ensuring that the environment remains protected during application
  • SAFE FOR ALL PLUMBING: Our toilet clog dissolver is capable of being used on all household plumbing and does not contain copper, ensuring that your pipes run smoothly without the risk of any harmful chemicals. Perfect for families wanting to regularly maintain their pipe lines
  • EASY TO USE: Our tree roots killers are easy to use, simply pour the entire contents into your toilet and flush! Restrict water usage for 4 to 6 hours, flush 2 to 3 times depending on the toilet

Peter

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