Is this just copper sulfate which can be bought pure for much less?

I think Robert has a good idea there.But, I checked on ebay and the Copper Sulfate Pentahydrate 99% was $10/pound, the same price as this product (now $20 for 2 pounds). So it works out the same cost wise.

compare to Roebic FRK-6 Foaming Root Killer, Which one is better? Thanks

I really don't know the answer. I've used the other Roebic root killer because we have a long standing problem with roots from a large tree fouling up our plumbing and causing back-ups in the sewage line to the street. I've used it for years and didn't even know about the FRK-6. My off-handed guess would be that the FRK-6 would be great to blast through a tangle of roots with and the K-77 I use is more of a preventive measure. I started using that after I'd spent $$$ having a "roto-rooter" guy ream out the sewer line for the umteenth time. I probably wouldn't hesitate to use the FRK-6 if I had another blockage in my line. I use the K-77 every six months and haven't had to resort to calling a plumber for several years since I started using it.

Has anyone had experience using this product on a slow moving drain WITHOUT having their drain augered?

I use that stuff every 3 months 1/3 of a bottle, now I augered my drain because mine had really backed up but I won't stop using this stuff, I haven't had to do anything else with the drain so I imagine it is killing all the roots from growing any further. It's definitely worth a try, I've got a friend within the family that does plumbing and he told me that is about the best on the market!

Is this safe to use in a Septic System without harming the septic mound which is about 200 feet from house?

I have used it twice in the past year and to my knowledge there has been no damage to my septic system. The product worked very well.

Roebic K 77 Granular Tree Root Killer Chemical Septic System

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Rp947622

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Sold byAmazon IndonesiaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🌿 Root out clogs before they root in — keep your pipes flowing like a pro!

PREVENTIVE POWER ⏳ - Stops root regrowth at the pipe entry point, maintaining smooth drainage and avoiding costly repairs.
ROOT ANNIHILATOR 🌿 - Eliminates invasive tree roots clogging your sewer and septic pipes quickly and effectively.
COST SAVING SOLUTION 💸 - Avoid expensive digging and rooter services—protect your home’s plumbing with a budget-friendly powerhouse.
PLUMBING FRIENDLY 🛠️ - Non-corrosive formula that protects all types of plumbing and septic tank bacteria, ensuring system longevity.
EFFORTLESS MAINTENANCE 💧 - Simple application every 6 to 12 months keeps your system clog-free without professional intervention.

Roebic K-77 Granular Tree Root Killer is a 32 oz powerful, non-corrosive treatment designed to eliminate and prevent root intrusion in sewer and septic pipes. Safe for all plumbing types and septic systems, it chemically kills roots at the entry point to maintain optimal drainage and prevent costly blockages. Easy to use every 6-12 months, it saves homeowners from expensive repairs and invasive plumbing work.

Specifications

ASIN	B000BQWKUQ
Best Sellers Rank	#9,838 in Health & Household ( See Top 100 in Health & Household ) #9 in Septic Tank Treatments
Brand	Roebic
Brand Name	Roebic
Contains Liquid Contents?	Yes
Customer Reviews	4.4 out of 5 stars 5,926 Reviews
Global Trade Identification Number	00033051001771
Included Components	Roebic - 33051001771
Item Form	Granule
Item Type Name	Roebic - 33051001771
Item Volume	32 Fluid Ounces
Item Weight	16 ounces
Manufacturer	Roebic Store
Material Feature	Non-Toxic, Unscented
Material Features	Non-Toxic, Unscented
Model Number	K-77-2LB
Number of Items	1
Part Number	K-77-2LB
Scent	Unscented
Size	32 Ounce (Pack of 1)
Special Features	Clears Clogs, Keeps System Running Smoothly
Specific Uses For Product	Toilet
Surface Recommendation	Septic System
UPC	033051001771 789474894833
Unit Count	32.0 Ounce
Warranty Description	Warranty

Reviews

K**T

23.03.2026

K**K

18.02.2026

P**R

20.04.2014

M**K

19.04.2026

G**S

29.04.2026

D**E

30.04.2026

C**R

13.11.2025

S**S

19.02.2026

L**B

8.12.2025

W**J

29.11.2024

S**R

17.08.2025

F**N

2.04.2025

M**B

23.01.2026

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Buy anything from 5,000+ international stores. One checkout price. No surprise fees. Join 2M+ shoppers on Desertcart.

Rp947622

Duties & taxes included

In stock

Sold byAmazon IndonesiaDelivered 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 Indonesia.

Secure transaction

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Roebic K-77 Granular Tree Root Killer, Chemical Septic System, Drain Field and Sewer Line Pipe Clog Remover and Root Destroyer, Safe for Bathroom Toilet, 32 oz

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