Can this product be poured into the cleanout pipe, outside the house, or is there any specific reason it should be poured into the toilet? Thanks

If you pour it into your toilet, be careful, you have to flush quickly or it will foam out of the toilet and then you will have a mess. I know where my problem is so I use the cleanout pipe. I didn't use it this year (2020) and it cost me $125 to have it snaked out.

How long does it take to work?

It kills the roots immediately. Then the fungi and bacteria rot the dead roots and they wash away over time.

Have two toilets, does it matter which one or should I use it on both? If so, not at the same time? Wait a couple of days apart? Thanks.

use on the toilet that's slow or backed up it goes to the main line to clear the pipe line. The catch is that you must use it every 3 months especially in the winter or rainy months when roots are growing. A plumber used this to clear the line the first time my line got clog and he charged $75 due to the company he worked for. But I am finding it at Home Depot for $16.95 and I live with it and recommend it. I forgot to use it for 6 months and the roots came back but with a repeated use of every 3 weeks my lines are clear again....so get it and stay with it on a regular bases or routine of every 3 months to avoid having a huge plumbing bill.

Which months should this be poured into the toilet? Now is too late?

It can be used any time, but it is best to apply twice a year about 6 months apart. Now is a good time to use and then again in spring.

Roebic Frk Foaming Tree Root Killer Chemical Septic System Drain

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Description

🚀 Keep roots out and peace of mind in—your pipes’ secret weapon!

ECO CONSCIOUS TREE SAFE - Protects your greenery while keeping your sewer lines clear—no collateral damage.
EFFORTLESS ANNUAL MAINTENANCE - Just pour, flush, and relax—prevents costly backups with minimal time investment.
UNIVERSAL PLUMBING COMPATIBILITY - Safe for all household pipes, including septic systems, with zero copper or harsh chemicals.
FOAMS ON CONTACT FOR MAXIMUM REACH - Patented formula expands to fill pipes, targeting root clogs before they start.
POWERFUL DICHLOBENIL ROOT INHIBITOR - Scientifically proven chemical agent stops new root growth in its tracks.

Roebic FRK Foaming Tree Root Killer is a 1 lb granular formula designed to prevent root intrusion in sewer and drain lines. Featuring a patented foaming action and the active ingredient dichlobenil, it safely inhibits new root growth without harming surrounding trees or household plumbing. Easy to use via toilet flush, it offers an eco-friendly, effective solution for long-term pipe maintenance favored by homeowners aiming to avoid costly sewer repairs.

Specifications

ASIN	B000BQM5DS
Active Ingredients	Dichlobenil, 2,6 Dichlorobenzonitrile
Brand	Roebic
Brand Name	Roebic
Coverage	Treated area or volume of pipe line covered by 1 lb. of Foaming Root Killer
Customer Reviews	4.4 out of 5 stars 8,160 Reviews
Global Trade Identification Number	00033051002778, 00033051051752
Included Components	Roebic FRK-1LB Foaming Root Killer, Clears Pipes and Stops New Growth, Safe for All Plumbing, 1 Pound White
Item Form	Granule
Item Type Name	Roebic FRK Foaming Root Killer, 1-Pound
Item Weight	1 Pounds
Liquid Volume	1 Liters
Manufacturer	Roebic
Model Number	FRK-1LB
Part Number	FRK-1LB
UPC	033051051752
Unit Count	16.0 Ounce
Warranty Description	Warranty

Reviews

P**S

14.01.2013

F**3

12.04.2026

H**Y

11.04.2025

P**R

11.12.2012

A**E

31.10.2023

C**S

7.03.2026

C**R

10.04.2026

J**Y

8.06.2025

I**.

23.04.2026

J**O

16.08.2020

A**I

25.01.2026

W**N

1.10.2025

G**0

6.11.2025

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5346 som

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In stock

Sold byAmazon KyrgyzstanDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Kyrgyzstan.

Secure transaction

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Roebic FRK Foaming Tree Root Killer, Chemical Septic System, Drain Field and ...

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