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Instant Power Septic Shock – Septic Tank Treatment, Drain Cleaner Liquid Clog Remover for Septic System, 67.6 Oz
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Return this item for free
We offer easy, convenient returns with at least one free return option: no shipping charges. All returns must comply with our returns policy.
Learn more about free returns.- Go to your orders and start the return
- Select your preferred free shipping option
- Drop off and leave!
Purchase options and add-ons
Brand | Instant Power |
Scent | No Scent |
Item Weight | 4.7 Pounds |
Product Benefits | Treats odors, backups, and organic waste in septic systems for 3 months, promoting eco-friendly waste management See more |
Manufacturer | Scotch Corp. |
About this item
- EFFECTIVE EMERGENCY DE-CLOGGER: This powerful drain clog remover works in just minutes; Just drop the easy-to-use in the toilet and flush to treat septic tanks up to 1,500 gallons
- SUPER-CHARGED FORMULA: Our septic tank treatment and drain cleaner is formulated with beneficial enzymes that break down system-clogging matter and open lateral or leach field lines, preventing septic backups and safe for all pipes
- LIQUEFIES ORGANIC MATERIALS: Put less elbow grease in cleaning your clogged drain system with Septic Shock; It dissolves paper, grease, soap, protein, starches, and everything organic that‘s blocking your pipes
- ELIMINATES ODORS: Bad odors inside or outside your home could indicate that your septic system is backed up; Instant Power Septic Shock eliminates odors as it works on your blocked drains and pipes
- SAFE AND EASY-TO-USE: Our clogged drain cleaner is free from harsh chemicals, acids, or caustics, so it's safe on your pipes; It's also simple to use, just add the entire 67.6 oz (2 Liters) bottle directly into the toilet and flush
Additional Details


4+ star item to consider
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Sustainability features
This product has sustainability features recognized by trusted certifications.Safer chemicalsMade with chemicals safer for human health and the environment.As certified byGreen Seal certified products have reduced environmental impacts at one or more stages of their lifecycle – from raw materials to end of life. A product is certified after an evaluation of its performance and compliance with strict health and environmental standards. Depending on the product, the standards cover various criteria including energy impacts, the presence of harmful chemicals, plastic use, raw materials impacts and effects on water and aquatic life.Manufacturing practicesManufactured using processes that reduce the risk of negative environmental impact.As certified byGreen Seal
Green Seal certified products have reduced environmental impacts at one or more stages of their lifecycle – from raw materials to end of life. A product is certified after an evaluation of its performance and compliance with strict health and environmental standards. Depending on the product, the standards cover various criteria including energy impacts, the presence of harmful chemicals, plastic use, raw materials impacts and effects on water and aquatic life. - Sustainability features for this product
Sustainability features
This product has sustainability features recognized by trusted certifications.Packaging efficiencyReduced air and/or water in the product or packaging for more efficient transportation.As certified byCompact by Design (Amazon-developed Certification)
Compact by Design identifies products that, while they may not always look very different, have a more efficient design. By reducing water and/or air in the product or packaging, these become more efficient to ship. At scale, these small differences in product size and weight lead to significant carbon emission reductions. - Sustainability features for this product
Sustainability features
This product has sustainability features recognized by trusted certifications.Packaging efficiencyReduced air and/or water in the product or packaging for more efficient transportation.As certified byCompact by Design (Amazon-developed Certification)
Compact by Design identifies products that, while they may not always look very different, have a more efficient design. By reducing water and/or air in the product or packaging, these become more efficient to ship. At scale, these small differences in product size and weight lead to significant carbon emission reductions. - Sustainability features for this product
Sustainability features
This product has sustainability features recognized by trusted certifications.Packaging efficiencyReduced air and/or water in the product or packaging for more efficient transportation.As certified byCompact by Design (Amazon-developed Certification)
Compact by Design identifies products that, while they may not always look very different, have a more efficient design. By reducing water and/or air in the product or packaging, these become more efficient to ship. At scale, these small differences in product size and weight lead to significant carbon emission reductions. - Sustainability features for this product
Sustainability features
This product has sustainability features recognized by trusted certifications.Safer chemicalsMade with chemicals safer for human health and the environment.As certified byGreen Seal
Green Seal certified products have reduced environmental impacts at one or more stages of their lifecycle – from raw materials to end of life. A product is certified after an evaluation of its performance and compliance with strict health and environmental standards. Depending on the product, the standards cover various criteria including energy impacts, the presence of harmful chemicals, plastic use, raw materials impacts and effects on water and aquatic life.Manufacturing practicesManufactured using processes that reduce the risk of negative environmental impact.As certified byGreen Seal
Green Seal certified products have reduced environmental impacts at one or more stages of their lifecycle – from raw materials to end of life. A product is certified after an evaluation of its performance and compliance with strict health and environmental standards. Depending on the product, the standards cover various criteria including energy impacts, the presence of harmful chemicals, plastic use, raw materials impacts and effects on water and aquatic life. - Sustainability features for this product
Sustainability features
This product has sustainability features recognized by trusted certifications.Forestry practicesMade with materials from well-managed forests, recycled materials, and/or other controlled wood sources.As certified byThe Forest Stewardship Council
The Forest Stewardship Council (FSC) supports responsible forestry, which is a vital solution to combat climate change. Choosing FSC-certified products – whether furniture, building materials, paper, rubber, or textiles – helps protect forests, wildlife, clean water and supports the Indigenous Peoples, forest workers and communities who depend on them. Choosing FSC-certified products can also help to mitigate climate change by supporting responsible management of the world’s forests. For a better future, choose FSC.
From the manufacturer





Product Description
Product Description
Instant Power Septic Shock septic tank treatment instantly unclogs a blocked or under-performing septic tank or cesspool. It dissolves paper, grease, soap, protein, and starches -- all the usual things that get in our drain system. Using a formulated blend of beneficial and powerful natural ingredients, this clogged drain cleaner clears crystallized soil and dissolves organic material blocking the system. Septic Shock liquid drain cleaner also eliminates odors and has no harsh chemicals, acids, or caustics, making it safe on all pipes and septic systems. This drain clog remover can be used in septic systems and RVs.
From the Manufacturer
Septic Shock quickly reconditions a clogged or under-performing septic tank or cesspool. Utilizing a formulated blend of beneficial live enzymes and bacteria, Septic Shock clears crystallized soil around the drain field to allow for proper porosity. At the same time, enzymes help digest other organic material clogging the system. Dissolves paper, grease, soap, protein, and starches! Eliminates odors! 100% Money-back Guarantee.
Product details
- Is Discontinued By Manufacturer : No
- Product Dimensions : 5 x 5 x 10.5 inches; 4.7 Pounds
- Item model number : 306189-STX
- Date First Available : February 10, 2012
- Manufacturer : Scotch Corp.
- ASIN : B007BL2R7K
- Country of Origin : USA
- Best Sellers Rank: #17,836 in Health & Household (See Top 100 in Health & Household)
- #15 in Septic Tank Treatments
- Customer Reviews:
Compare with similar items
This Item ![]() Instant Power Septic Shock – Septic Tank Treatment, Drain Cleaner Liquid Clog Remover for Septic System, 67.6 Oz | Recommendations | |||||
Try again! Added to Cart | Try again! Added to Cart | Try again! Added to Cart | Try again! Added to Cart | Try again! Added to Cart | Try again! Added to Cart | |
Price | $12.44$12.44 | -33% $99.16$99.16 List: $149.00 | $33.95$33.95 | -12% $11.14$11.14 List: $12.60 | $79.97$79.97 | $189.99$189.99 |
Price Per Unit | — | — | $0.27 / fluid ounce | — | $8.00 / fluid ounce | $1.48 / fluid ounce |
Delivery | Get it as soon as Tuesday, May 6 | — | Get it as soon as Tuesday, May 6 | Get it as soon as Tuesday, May 6 | Get it as soon as Tuesday, May 6 | Get it as soon as Tuesday, May 6 |
Customer Ratings | ||||||
Sold By | Amazon.com | Greenpig | Compare Brands LLC | Amazon.com | Beyond Environmental LLC | New Solutions Ag LLC |
size | 67.6 Fl Oz (Pack of 1) | 2 Gallon Kit | Gallon (128 Ounce) | 67.8 Fl. Oz. | 128 Fl Oz (Pack of 1) | 7.5W x 10.5T |
form | Liquid | — | liquid | Liquid | — | — |
weight | 4.7 pounds | 8.58 kilograms | 128 ounces | — | 8 pounds | 10 pounds |
Important information
Safety Information
Keep from freezing. Store at temperatures above 32F (0C) and below 120F (49C). Do not use in conjunction with bleach, disinfectants or other drain chemicals, as these will inactivate the bacteria / enzymes and promote failure of the septic tank or cesspool.
Ingredients
Septic Shock
Directions
Add 2 liters (1 container) directly into toilet for clogged or foul-smelling septic tanks; add 2 liters directly into catch-basin for clogged or foul-smelling cesspools; add 2 liters directly to the distribution box or into the pipe leading from the septic tank for clogged or foul-smelling septic tank drain fields; reapply weekly until problem is gone; do not use in conjunction with bleach, disinfectants, or other drain chemicals.
Legal Disclaimer
Statements regarding dietary supplements have not been evaluated by the FDA and are not intended to diagnose, treat, cure, or prevent any disease or health condition.
Customer reviews
Customer Reviews, including Product Star Ratings help customers to learn more about the product and decide whether it is the right product for them.
To calculate the overall star rating and percentage breakdown by star, we don’t use a simple average. Instead, our system considers things like how recent a review is and if the reviewer bought the item on Amazon. It also analyzed reviews to verify trustworthiness.
Learn more how customers reviews work on AmazonCustomers say
Customers report that the septic shock treatment works well and helps maintain their systems, with one noting it's effective for a 30-year-old septic system. The product is easy to use and helps clear sludge from the tank. While some customers find it affordable, others consider it a waste of money. Opinions are mixed regarding drainage speed, with some reporting quick results while others experience slow water flow. The smell aspect also receives mixed feedback, with some saying it eliminates odors while others report foul smells.
AI-generated from the text of customer reviews
Customers report that the septic tank treatment works well, with their systems operating properly after use.
"...It did not disappoint! It was the right price, easy to pour and it worked very well!" Read more
"...By the end of the summer, the fields were running normally. This is very impressive!" Read more
"...Also, now it works only half of the time." Read more
"Works great. Easy to use." Read more
Customers report that the drain cleaner effectively clears clogs and sludge from their septic tanks.
"Best shock I've found, clears my drain from clogs. Great for septic systems, and great price!..." Read more
"...After several treatments, the wet area began to clear up and dry out. It has been dry for several months! We are very pleased with this product!!!" Read more
"This worked very well. One treatment and all of the septic tank issues reduced. This will get us through until we can get the tank pumped." Read more
"...I pushed down causing a plunging action. The clog is free. I am free...." Read more
Customers find the septic tank treatment easy to use, with one mentioning that it works well when following the directions.
"Works great. Easy to use." Read more
"...Septic shock is a must, a name you can trust and it's use is no fuss." Read more
"Works wonderful. Workers great follow directions.⟵(o_O) Thank you" Read more
"...help my drain in my main bathroom will definitely buy again it was way to use . Should definitely wear cloves when pouring." Read more
Customers report positive experiences with the septic system treatment, noting no issues with their systems. One customer mentions it's effective for a 30-year-old system.
"Best shock I've found, clears my drain from clogs. Great for septic systems, and great price!..." Read more
"...It revives the bacterial colonies, puts life back into a dead tank and gets the munching and digesting back up to the standards needed...." Read more
"...This will save your septic if its slowing down in the draining field!..." Read more
"Septic was backed up something awful, called a company and was told that the drain field had became plugged with "bio-mat", They wanted $750..." Read more
Customers have mixed opinions about the septic tank treatment's value for money, with some finding it affordable and noting it saved them thousands of dollars, while others consider it a waste of money.
"...It did not disappoint! It was the right price, easy to pour and it worked very well!" Read more
"...Septic repairs can be extremely costly!" Read more
"...Great for septic systems, and great price! I've been using for years and only need it for my shock, it just does the rest as well." Read more
"...We saved money in unnecessary drain field repairs and most importantly NOT ONE SEPTIC REPAIR COMPANY OR PERSON SUGGESTED TO CLEAN THE MAIN LINE...." Read more
Customers have mixed experiences with the septic tank treatment's smell: while some report that all odors are gone and their sewer system is no longer stinking, others mention foul-smelling areas persist.
"...Add the whole bottle and wait overnight, no more back up so no more sewage smell...." Read more
"...Yes, water. No smell at all but after looking into what this could be I realized the drain field system was clogged in at least four places...." Read more
"My bathroom has a bad smell like bad sewer water and I've noticed little black flying bugs so I purchased this thinking this would solve the problem..." Read more
"...Shock for 3 or 4 weeks and my surface problem dried out and stopped smelling...." Read more
Customers have mixed experiences with the septic tank treatment: some report that water drains quicker and bathtubs drain properly, while others mention that water drains slowly.
"...It has been dry for several months! We are very pleased with this product!!!" Read more
"...And as I have said, the rain has not let up. We may get one day of clear after 2-3 of rain, then one of clear and 2-3 of rain...." Read more
"...hour before the guests arrived the water started backing up and not draining at all. Worst, this time raw sewage started backing up (YUK)...." Read more
"...However, days later I did confirm the bathtub definitely was draining properly now because there was no soap residue left inches up the wall of the..." Read more
Customers have mixed experiences with how quickly the drain opener works, with some reporting fast results while others find their drains remain slow.
"...of the main line which had caused the block that resulted in slow water draining and gurgling...." Read more
"...Add the whole bottle and wait overnight, no more back up so no more sewage smell...." Read more
"...So I ordered another bottle, and, like clockwork, the flush was a bit sluggish a week after the first treatment...." Read more
"This product is a fast acting, quick working solution...." Read more
Reviews with images

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Top reviews from the United States
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- Reviewed in the United States on April 14, 2025Size: 67.6 Fl Oz (Pack of 1)Verified PurchaseI purchased this to see if it would work. It did not disappoint! It was the right price, easy to pour and it worked very well!
- Reviewed in the United States on April 1, 2025Size: 67.6 Fl Oz (Pack of 1)Verified PurchaseActually, it does work. I had a major problem with my 30 year old septic system. The previous homeowners had neglected having it pumped out regularly, and the fields were completely plugged. Replacing the fields would have been monstrously expensive because a road had been built over the fields after they were installed.
I tried a different brand and nothing happened. I tried this item, and used it once a week for an entire summer. By the end of the summer, the fields were running normally. This is very impressive!
- Reviewed in the United States on April 22, 2025Size: 67.6 Fl Oz (Pack of 1)Verified PurchaseI buy this for 3 or 4 years now. I use it to unclog toilet. It used to work really well for that. I'd put a little, leave for an hour or so and flush, it worked 9 out of 10 times. Now, something has changed in the formula. The liquid used to be a dark green that turned the water dark green as soon as you poured it in. Now it is a lighter green and it doesn't seem to change the water color as it used to. Also, now it works only half of the time.
- Reviewed in the United States on April 2, 2025Size: 67.6 Fl Oz (Pack of 1)Verified PurchaseWorks great. Easy to use.
- Reviewed in the United States on March 18, 2025Size: 67.6 Fl Oz (Pack of 1)Verified PurchaseMy bathroom has a bad smell like bad sewer water and I've noticed little black flying bugs so I purchased this thinking this would solve the problem but nothing has changed. Unfortunately, it does not work.
- Reviewed in the United States on April 3, 2024Size: 67.6 Fl Oz (Pack of 1)Verified PurchaseBasically, I bought this to unclog my toilet because my system was backing up in to my bathtub. It did not successfully fix that issue. But I'm not giving it a one star. Because that's not what it's meant for it. And because my plumber said that the issue was pretty bad. He had to go get a longer snake and all that so maybe it wasn't the fault of this product. I have been getting the plumbers to come out and when they do, they fine baby wipes that I don't use, in my plumbing so I'm gonna say that it's not the fault of this product and I didn't use it correctly.
- Reviewed in the United States on April 15, 2025Size: 67.6 Fl Oz (Pack of 1)Verified PurchaseWorks great!!!
- Reviewed in the United States on March 7, 2025Size: 67.6 Fl Oz (Pack of 1)Verified PurchaseMy kitchen drain was making a bubbling sound. I got on the computer and researched what was happening with the septic tank. The recommendation was super shocking it, so I did. This stuff works. The sound has stopped. We'll see as days go by.
Top reviews from other countries
- RcReviewed in the United Kingdom on April 1, 2015
5.0 out of 5 stars Great value
Size: 67.6 Fl Oz (Pack of 1)Verified PurchaseWorked well.. Great value
- Amazon CustomerReviewed in Canada on November 22, 2022
5.0 out of 5 stars Seems to have worked
Size: 67.6 Fl Oz (Pack of 1)Verified PurchaseWe had an issue with the septic tank plugging up when draining into the septic bed. There must have been a blockage somewhere deep in the piping leading into the bed.
I cannot directly say this was the solution. For the price, it was a good value and was part of the action plan. It is worth trying compared with replacing the bed altogether. We had a contractor come out and tell us we needed to replace the bed.
We ended up going a different route. I called a company to pump out the tank. Once the tank was drained, they still had the lids off. I took an old garden house and poured 2 bottles directly into the outlet pipe leading to the septic bed. I let it work for two weeks while the tank filled back up.
It looks like it worked as it was no longer backing up.
Two months later, I pulled a lid off again to take a look, I noticed that some paper was going into the pipe as we had no filter (30 yr old concrete tank/bed). I called a plumber to install a filter and add the plastic easy access lids. Just before he arrived, we again emptied 2 bottles into the outlet pipe with a garden hose. So far so good.
Also, the plumber advised us to limit the laundry loads to a max of 1 a day to give the septic bed enough time to drain. When you factor in laundry, dishwasher, and showers, it can strain the system.
- Amazon CustomerReviewed in Canada on March 24, 2025
5.0 out of 5 stars Easy to use
Size: 67.6 Fl Oz (Pack of 1)Verified PurchaseWorked so far
- S. ScottReviewed in the United Kingdom on September 2, 2016
4.0 out of 5 stars Four Stars
Size: 67.6 Fl Oz (Pack of 1)Verified PurchaseDid the job
- Amazon CustomerReviewed in Canada on March 19, 2021
4.0 out of 5 stars Works as Advertised
Size: 67.6 Fl Oz (Pack of 1)Verified PurchaseWorked well in my septic system
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