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General
Package Quantity	6	Unit of Measure	Ounce(s)
Type	Treatment	Form	Packets
Application Method	Drop-in tablet	Series Name	Septic Defense

Features
Cleans Pipe Walls	Yes	Breaks Down Paper Products	Yes
Non-Corrosive	Yes	Kills Roots	No
Gallons Treated (Gallons)	1500	Deodorizing	Yes
Breaks Down Grease	No	Organic	No

Certifications
CA Residents: Prop 65 Warning(s)	No

Warranty
Warranty	2-year limited

Compatibility
Safe for All Pipes	Yes

Miscellaneous
UNSPSC	47131800

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Review

4.7 out of 5

439 Reviews

98% Recommend this product

Ratings may include incentivized customer reviews.

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What Customers Are Saying

The product is reported to be highly effective and easy to use. Many customers have used it for years with no septic issues, and some say their septic company was impressed with the results. The pre-measured packets are described as convenient and mess-free, and the product is considered a good value compared to other brands. Overall, the majority of customers are very satisfied with this septic tank treatment.

Customer review summary generated by AI, including incentivized reviews.

439 Customer Reviews

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Good for Regular Toilet Drain Maintenance

Would Recommend

I tried Septic Defense after noticing my high-water toilet was not flushing and draining as smoothly as it used to. The natural enzymes help break down organic waste and paper that can collect in the septic system. After several weeks, everything has been working more smoothly, with less odor and no noticeable buildup. The six-pack makes it easy to keep up with regular treatment.

AXerSeptember 7, 2026
Verified Purchaser

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Great septic tank product

Would Recommend

Easy to use no measuring. Individual packs just throw in and flush

CorkySeptember 6, 2026
Verified Purchaser

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Great product

I've been using this product for years it's great

MikeSeptember 4, 2026
Verified Purchaser

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Septic defense

Would Recommend

Product worked and was very easy to use.

RayJSeptember 3, 2026
Verified Purchaser

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Response from Zep Customer Support

Thanks for the 5-star review!

Zep Customer SupportSeptember 3, 2026

I died for five months. It’s good working product.

Roky 3September 1, 2026
Verified Purchaser

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Response from Zep Customer Support

Thanks for the 5-star review!

Zep Customer SupportSeptember 2, 2026

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COMPARE PRODUCTS

		Name	Current Item ZepSeptic Defense 6 -Pack -oz Septic Cleaner
		Ratings	439
		Breaks Down Grease
		Form	Packets
		Gallons Treated (Gallons)	1500
Instant PowerIP Septic System Treatment 67.6 -oz Septic Cleaner	Instant PowerSeptic System Treatment 12 -Pack 12 -Count Septic Cleaner	Instant PowerIP Septic Shock Re-Conditioner 67.6 -oz Septic Cleaner	Rid-XSeptic System Maintenance Powder 19.2 -fl oz Septic Cleaner	Roebic Laboratories, Inc.Roebic 64 -fl oz Septic Cleaner	Rid-XPro Septi-Pacs 3 -Pack 3.2 -oz Septic Cleaner	Roebic Laboratories, Inc.1 lb Foaming Root Killer -oz Septic Cleaner	Roebic Laboratories, Inc.Roebic K-570-Q Leach and Drain Field Opener Concentrate 32 fl oz	ZepSeptic Defense 8 -Pack 16 -Count Septic Cleaner
87	113	104	381	98	35	362	3	437

Liquid	Packets	Liquid	Powder	Liquid	Packets	Powder	Liquid	Packets
1000	1500	1000	1500	1000	1500	500	1500	12000