--- product_id: 358192064 title: "Septi-Flow Shock Septic Drainfield Repair Solution, Clears Leach Fields, Dissolves Hardened Deadpan Soil, Complete Treatment, One Gallon - 128 Fl Oz (Pack of 1) - Drain Field Treatment by Septi-Flow" brand: "septic-flow" price: "£145.50" currency: GBP in_stock: true reviews_count: 5 category: "Septic Flow" url: https://www.desertcart.co.uk/products/358192064-septi-flow-shock-septic-drainfield-repair-solution-clears-leach-fields store_origin: GB region: United Kingdom --- # results in 2-4 weeks 128 fl oz powerful formula biodegradable & septic-safe Septi-Flow Shock Septic Drainfield Repair Solution, Clears Leach Fields, Dissolves Hardened Deadpan Soil, Complete Treatment, One Gallon - 128 Fl Oz (Pack of 1) - Drain Field Treatment by Septi-Flow **Brand:** septic-flow **Price:** £145.50 **Availability:** ✅ In Stock ## Summary > ♻️ Keep your septic flowing, your soil thriving, and your peace of mind intact! ## Quick Answers - **What is this?** Septi-Flow Shock Septic Drainfield Repair Solution, Clears Leach Fields, Dissolves Hardened Deadpan Soil, Complete Treatment, One Gallon - 128 Fl Oz (Pack of 1) - Drain Field Treatment by Septi-Flow by septic-flow - **How much does it cost?** £145.50 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.co.uk](https://www.desertcart.co.uk/products/358192064-septi-flow-shock-septic-drainfield-repair-solution-clears-leach-fields) ## Best For - septic-flow enthusiasts ## Why This Product - Trusted septic-flow brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Proven Longevity:** Users report 9+ years of clear fields with biannual use—join the maintenance pros - • **Biodegradable & Safe:** Eco-friendly formula since 1950, safe for all septic systems and plumbing - • **Easy Application Process:** Simple 2-step treatment with clear instructions for lasting results - • **Cost-Effective Maintenance:** Prevents costly repairs by keeping your drain field clear and efficient - • **Heavy-Duty Septic Line Cleaner:** Tackles stubborn sodium, phosphate & salt buildup for smoother flow ## Overview Septi-Flow Shock is a scientifically developed, biodegradable septic drain field treatment that dissolves hardened soil and buildup from soaps, salts, and detergents. Designed for slow or sluggish septic systems, this 128 fl oz solution restores flow within 2-4 weeks and prevents expensive repairs. Trusted since the 1950s, it’s easy to apply and ideal for proactive maintenance, ensuring your septic system stays efficient and long-lasting. ## Description Product description Septi-Flow Shock septic drain field treatment was originally developed by Chevron ORTHO in the 1950s. Our product has shown that its powerful ingredients (a proprietary blend) of inert, waste/soap/detergent dissolving agents) are more than capable of tearing through even the worst septic drain field build-up of sodium, salts and phosphate buildup from detergents and soaps commonly used in septic systems. A small investment in our septic treatment products products can save you years and thousands of dollars in headaches down the road! Our septic system and leach field treatment works great for maintenance and the beginning stages of slowing and deadpan drain fields. Please note: This treatment will not work if your system is completely stopped! When Restoring a Very Soggy and Slow Failed Drain Field or Leach Field System: Easy-to-Use Directions: For Slow or Sluggish Drain Fields/Septic Tanks: Start with 4 gallons of product. we recommend pumping tank first to get the highest possible concentration of the product into the septic drainfield for treatment. Pour 2 gallons of product via the toilet, sink, drain, d-box, or tank opening then flush with water behind it. ▶ Next, additionally if the soil is visibly holding water on the surface use another 4 gallons of product as a surface treatment as follows. Use a very long 12+" screwdriver and poke holes about 6-10 inches down about 1 foot apart into the soil above the drain field. Apply a minimum of 2-4 gallons of product to the holes you have made. ▶For waterlogged systems;Dramatically reduce household water consumption. Try to drain off or septic pump out as much excess water as possible before treatment to increase concentration of product attacking the problem. If you cannot access the distribution or "D-Box," adding additional product via the toilet or sink may be necessary. SEPTI-FLOW SHOCK DIRECTIONS: An average 1,500 gallon septic tank (a 4/3 bed/bath house) start with 4 gallons of product. We recommend pumping the tank prior to treatment. Pour 2 gallons of Septi-Flow Shock into the toilet, tank, distribution box. After 1 week, add 2 more gallons of Septi-Flow Shock. Flush freely with water. Within 2-4 weeks you should see an improvement with the flow. If the septic is completely stopped this product WILL NOT work to address the issue. Salt/sodium/phosphate buildup from soaps, laundry/dishwasher agents, and water softeners (salt buildup) are one of many possible problems could be pipe collapse, roots, septic other potential problems. Indications Slow emptying or semi-backed up dain fields, completely stopped drain fields will not benefit from Septic Flow Shock as the chemical needs to get to the source of the problem (sodium and phosphgate buildup) to address it. Please do not purchase if your system is stopped completely or so slow that this reaction can not occur. P.when('A').execute(function(A) { A.on('a:expander:toggle_description:toggle:collapse', function(data) { window.scroll(0, data.expander.$expander[0].offsetTop-100); }); }); Directions 1- For optimal results for Septi-Flow Shock pump tank first. 2- Add 2-4 gals to an average 1500 gal septic tank. 3- Add to toilet, d-box, septic tank and/or drainfield holes. 4- Use as normal for 2 weeks. 5- Add additional 2-4 gals after 2 weeks of regular use. 6- Reaction should occur within 3-6 weeks of application. *** If tank is STILL slow or stopped many other issues could be attributed to slow septic lines such as broken pipes, tree roots, Biomat making its way into the septic field etc. Safety Warning Only apply Septi-Flow septic drain field repair to toilet OR outside septic drain field distribution box (d-box). Keep out of reach of children. See more Review: Just thought I would provide another update and after 9 years my fields are still clear - I dump two gallons every six months into my last septic tank which gets pumped into the fields. (This is an updated review after 4 1/2 years - still using the product every 6 months and septic fields are still working great! As stated initially below, septic field failures are hard to diagnose. But once you get it cleared out, use this product to keep it clear.) It would be really hard to state that this item does or does not work. Septic field problems can be caused by so many different things as I have found out. When my fields failed, common sense told me that some liquid in a bottle was not going to fix my problem. I had my lines jetted first and then used a service that performs the "ground fracking" method to open clogged soil. Before they left they told me to use a product like this every 6 months to continually keep the soil conditioned. That was 2 1/2 years ago. My fields are still working and I cant tell for sure if this product works or doesn't. It was based on their recommendation. Since I haven't had any problems, I would say that it works. Most important thing I learned through this whole process - Do not run your water softener into your septic system!!! Review: The three star rating is mostly based on the fact that if you don't read and figure out just how many of these you need to purchase to be used as designed you will be way short of what is required. Once I can order another 5 of these and apply as required I will do another review. ## Features - SEPTI-FLOW SHOCK DRAINFIELD LINE CLEANER: Septi-Flow Shock, a heavy-duty septic field line cleaner, efficiently cleans and clears septic drain field lines, combating the buildup of excess soaps, detergents, sodium, and sulfate - ELIMINATES BUILDUP: Our septic drain field treatment helps eliminate sodium, phosphate, and sulfate buildup in your septic drain field. It also aids in eliminating locked up and deadpanned soil from soap, sales, and detergent runoff - BIODEGRADABLE SOLUTION: Septi-Flow Shock, scientifically studied and used since 1950, is safe for all septic systems, pipes, plumbing and is biodegradable in the septic tank system - COST-EFFECTIVE: Septi-Flow Shock prevents expensive septic drain field repairs. Check our YouTube videos for detailed instructions on how to use this cost-effective leach field treatment - SEPTI-FLOW SHOCK DIRECTIONS: An average 1,500 gallon septic tank (a 4/3 bed/bath house) start with 4 gallons of product. We recommend pumping the tank prior to treatment. Pour 2 gallons of Septi-Flow Shock into the toilet, tank, distribution box. After 1 week, add 2 more gallons of Septi-Flow Shock. Flush freely with water. Within 2-4 weeks you should see an improvement with the flow. If the septic is completely stopped this product WILL NOT work to address the issue. Salt/sodium/phosphate buildup from soaps, laundry/dishwasher agents, and water softeners (salt buildup) are one of many possible problems could be pipe collapse, roots, septic other potential problems. - FLOW REQUIREMENT: Keep in mind, Septi-Flow Shock will not work on completely stopped septic leach field systems. There must be some movement and flow in your system for our drain field cleaner to work - EASY APPLICATION: Start with 4 gallons of product for slow or sluggish drain fields/septic tanks. We recommend pumping the tank first and then pour 2 gallons of product via the toilet, sink, or drain closest to the septic tank outlet ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B005O1WOF4 | | ASIN | B005O1WOF4 | | Best Sellers Rank | 200,055 in Grocery ( See Top 100 in Grocery ) 906 in Drain Openers | | Brand | Septic-Flow | | Customer Reviews | 4.1 4.1 out of 5 stars (580) | | Customer reviews | 4.1 4.1 out of 5 stars (580) | | Date First Available | 25 Aug. 2013 | | Format | Liquid | | Is discontinued by manufacturer | No | | Item model number | SF1G | | Manufacturer | Nature's Innovation, Inc. | | Product Dimensions | 17.78 x 10.16 x 30.48 cm; 3.63 kg | | Product Name | Septic Drain Field Treatment and Septic Leach Field Repair | | Units | 3785.4 milliliter | | Volume | 128 Fluid Ounces | ## Product Details - **Brand:** Septic-Flow - **Item weight:** 128 Ounces - **Manufacturer:** Nature's Innovation, Inc. - **Product benefits:** Cleans Drain - **Scent:** Unscented ## Images ![Septi-Flow Shock Septic Drainfield Repair Solution, Clears Leach Fields, Dissolves Hardened Deadpan Soil, Complete Treatment, One Gallon - 128 Fl Oz (Pack of 1) - Drain Field Treatment by Septi-Flow - Image 1](https://m.media-amazon.com/images/I/61liGM-YQOL.jpg) ## Questions & Answers **Q: What does Septi-Flow Shock do?** A: Septi-Flow Shock Liquid helps chemically aid in reversing "deadpan" or "hard soil" that forms after years of sodium building up in the soil. **Q: What will Septi-Flow not do?** A: Septi-Flow Liquid Shock treatment must have water flow to work. It will not work if the soil is completely locked up! Septi Flow will not kill the microbes in your septic tank. **Q: How do I know how much Septi-Flow Shock to use?** A: The recommended amount depends on tank size. For most 1,000-1,500+ gallon tanks, add (One) four-gallon pack of Septi-Flow Shock. For slow/clogged systems due to sodium buildup it is best to pump first. For routine maintenance, pumping is not needed. **Q: How long after treatment will I see results?** A: We always recommend pumping your system (unless you are adding the product for maintenance purposes) before adding this product for the best result. Average results occur in 3-6 weeks, but we have seen improvements in 7-10 days. **Q: How do I know this product is what my system needs?** A: To know if Septi-Flow is right for your septic system the best step is having a septic professional assess it on-site. Even if you use Septi-Flow, we recommend pumping the tank first before treatment; unless you're adding it for routine maintenance. ## Customer Reviews ### ⭐⭐⭐⭐ Review *by N***V on 7 March 2018* Just thought I would provide another update and after 9 years my fields are still clear - I dump two gallons every six months into my last septic tank which gets pumped into the fields. (This is an updated review after 4 1/2 years - still using the product every 6 months and septic fields are still working great! As stated initially below, septic field failures are hard to diagnose. But once you get it cleared out, use this product to keep it clear.) It would be really hard to state that this item does or does not work. Septic field problems can be caused by so many different things as I have found out. When my fields failed, common sense told me that some liquid in a bottle was not going to fix my problem. I had my lines jetted first and then used a service that performs the "ground fracking" method to open clogged soil. Before they left they told me to use a product like this every 6 months to continually keep the soil conditioned. That was 2 1/2 years ago. My fields are still working and I cant tell for sure if this product works or doesn't. It was based on their recommendation. Since I haven't had any problems, I would say that it works. Most important thing I learned through this whole process - Do not run your water softener into your septic system!!! ### ⭐⭐⭐ Review *by G***G on 17 October 2017* The three star rating is mostly based on the fact that if you don't read and figure out just how many of these you need to purchase to be used as designed you will be way short of what is required. Once I can order another 5 of these and apply as required I will do another review. ### ⭐⭐⭐⭐⭐ Review *by S***M on 8 July 2025* Started working within a month! We had two experts out to see why our yard never dried out. Both said our septic system was working fine. Even with having the system pumped the yard would not dry up. One application of this and we already have noticed a major change for the better. We just bought a second bottle and hope our problems are behind us. ## Frequently Bought Together - Septi-Flow Shock Septic Drainfield Repair Solution, Clears Leach Fields, Dissolves Hardened Deadpan Soil, Complete Treatment, One Gallon - 128 Fl Oz (Pack of 1) - Drain Field Treatment by Septi-Flow - Roebic K-570-Q 32-Ounce Leach And Drain Field Opener Concentrate - Environmentally Friendly and Biodegradable Solution - Septic Tank Treatment | Septic Enzyme Pods | 1 Year Supply | 2+ Billions CFUs per Pod | Fast-Dissolving, Live Bacteria-Plus Enzymes | Prevents Backups & Odors | Made in USA by Septi-Flow | 12 Packets --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.co.uk/products/358192064-septi-flow-shock-septic-drainfield-repair-solution-clears-leach-fields](https://www.desertcart.co.uk/products/358192064-septi-flow-shock-septic-drainfield-repair-solution-clears-leach-fields) --- *Product available on Desertcart United Kingdom* *Store origin: GB* *Last updated: 2026-05-17*