--- product_id: 687874974 title: "Pure Lye 400 lb Drain Opener 99% Sodium Hydroxide Beads, Soap Maker" brand: "comstar" price: "R201921" currency: ZAR in_stock: true reviews_count: 9 category: "Com Star" url: https://www.desertcart.co.za/products/687874974-pure-lye-400-lb-drain-opener-99-sodium-hydroxide-beads store_origin: ZA region: South Africa --- # eco-friendly & biodegradable formula fast-dissolving bead shape for soap making 99% pure sodium hydroxide beads Pure Lye 400 lb Drain Opener 99% Sodium Hydroxide Beads, Soap Maker **Brand:** comstar **Price:** R201921 **Availability:** ✅ In Stock ## Summary > 🚿 Clear drains, cleaner conscience — unblock like a pro! ## Quick Answers - **What is this?** Pure Lye 400 lb Drain Opener 99% Sodium Hydroxide Beads, Soap Maker by comstar - **How much does it cost?** R201921 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.co.za](https://www.desertcart.co.za/products/687874974-pure-lye-400-lb-drain-opener-99-sodium-hydroxide-beads) ## Best For - comstar enthusiasts ## Why This Product - Trusted comstar brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Pipe-Friendly Formula:** Safe on all fixtures, metals, and plastics—no harsh fumes or corrosion - • **Eco-Conscious Cleaning:** Biodegradable and septic-safe formula that supports healthy bacteria growth - • **Industrial-Grade Purity:** 99% pure sodium hydroxide beads for maximum clog-busting power - • **Targeted Blockage Attack:** Beads sink through standing water to dissolve grease and roots at the source - • **Soap Maker’s Secret Weapon:** Unique bead form dissolves quickly, ensuring smooth, clump-free soap batches ## Overview ComStar Pure Lye is a professional-grade, 99% pure sodium hydroxide bead formula designed to rapidly dissolve tough clogs caused by grease, hair, and roots. Its unique bead technology ensures fast, clump-free dissolving, making it a favorite among soap makers and drain cleaners alike. Eco-friendly and biodegradable, it’s safe for septic systems and all pipe types, delivering powerful results without harsh fumes or damage. Trusted by thousands, this USA-made drain opener transforms stubborn blockages into clear flow with ease. ## Description Buy ComStar Pure Lye 400 lb Drain Opener 99% Sodium Hydroxide Beads, Soap Maker | Unique Beads for Drains, Septic Systems, Cesspools & Grease Traps, Lye for Soap-Making, Bio-Safe, Eco-Friendly, Made in USA: Drain Openers - desertcart.com ✓ FREE DELIVERY possible on eligible purchases Review: Miracle worker - My kitchen sink backs into my bathroom sink once a year. The plumber says its roots. I dont beleive him. This year, I wasnt spending $700 for them to come out and clear the lines. Since december I have tried zap stuff, twice and it didnt work. I borrowed a snake, snaked thru the entire line, didnt work. I almost gave up and called a plumber but decided to come on desertcart and look at reviews on drain cleaners. This product does NOT disappoint!!! It arrived about 2 hours ago. I heavily armed myself with protective gloves, eyewear and old heavy clothes. (My dad scared the life out of me about this stuff being very dangerous) I read the directions about 40 times before I was confident enough to use it. I really didnt want to burn an arm off or worse, cause my pipes to melt causing me more money that I dont have. Ok. I followed the direction for a slow drain. First I boiled water and sent that down the drain a few times as it says to "warm the pipes up" then I used one cup of this miracle stuff in each drain. It fizzed, hissed and reminded me of the science experiment in middle school of an exploding volcano that only half works... it erupted, slightly. Then all settled and I waited, and waited. I didnt want to jump the gun at just 15 minutes. This was some major clog we were working with. So while I waited, I started boiling water in ever big pot I had on all my burners. Alexa rang and my time was up! I started off pouring the boiling water SLOWLY down the first drain I dropped the product down. Nothing. No fizzing, no exploding. It just kept draining. Shocked. I ran to my kitchen and started dumping water down the drain... surely it would back up into my bathroom sink again... three gallons down the hatch... i run to the bathroom... it's clear! Holy moly! I put this stuff to the test. I run both the sinks hot water full blast down the kitchen sink and bathroom. Now I'm running back and forth like a crazy woman but guess what! Nooooo clog, no water pooling, nothing. I'm so amazed with this product. For weeks I have been stressing about not having the money to fix this, but after spending under 6 bucks on this stuff I am floored. I will NEVER buy any other drain cleaner again and neither should you! This stuff is a game changer! Review: I'm totally surprised ... and impressed! It WORKED! - I read through other desertcart reviews about this product, so decided to give it a try. I have to say, I'm totally impressed! I had a bathroom drain that was nearly completely clogged up, mostly with hair. Ordinarily, I'd have just pulled out the drain plug, dug the hair out with my hemostats, and been done with it. But this particular plug is unnecessarily difficult to get out, so I thought I'd try something else. My first attempt was with some sort of drain cleaner. Directions said to use half of the bottle, I think there was maybe 1/3 of the bottle left, so I used that. Poured it into the bathtub drain, left it overnight, took a shower the next day and saw no improvement whatsoever. It took 1 inch of water in the bathtub about 40 minutes to drain. Expecting the Lye to perform no better than my drain cleaner, poured it down the drain 4 times, rather than "just" following the directions. I reasoned that perhaps most of the solution would drain PAST the hair clog, and NOT dissolve the clog? So, on the first night, I estimated doing what the directions said, 1 cup of Lye dissolved into 1 to 1 1/2 cups of water. Poured it down the drain. Left it overnight. Next day, made up a small solution - maybe half of what the directions suggested, poured it slowly into the drain. Did that, again, that evening, and, again, the next day. Four days later, I took a shower in that particular shower, and it drained just fine, I couldn't believe it! So, now I'm wondering how much the lye actually worked after only ONE administration, rather than 4. But I'm glad and quite impressed that it really did work. In total, I used about 2/3 of the bottle, with plenty left over for other drains in the house. Of note: Lye is not the nicest stuff to use or have around in your house. I found out that when you mix it with water, it generates heat. I could easily feel the heat through the plastic bucket that I used to mix the solution. Lye will chemically burn your skin, to be careful. Don't let it touch your skin, and be especially careful not to get it into your eyes. Also, according to wikipedia, Lye can pull enough water out of the atmosphere to turn itself into a liquid solution (which generates heat) and can potentially ignite other flammable substances (paint? gasoline? paint thinner?) So I'll use ALL of the remaining Lye in my other household drains, and NOT store it in the house or in the hot garage. Knowing full well that the next time the drain even STARTS to drain SLOWLY, the solution is only one quick visit to desertcart and a couple of days away. ## Features - 99% PURE SODIUM HYDROXIDE: Our industrial-strength formula is the purest white, bead-size lye available. This professional-grade sodium hydroxide is designed to dissolve grease, hair, and root growth instantly, making it the ultimate drain opener for stubborn clogs. - THE SOAP MAKER’S FAVORITE: Crafters prefer ComStar Pure Lye for its unique bead shape that dissolves quickly and won't clump or create static. Whether you are a beginner or a pro, these small beads make soap making faster, easier, and more consistent. - ECO-FRIENDLY & BIODEGRADABLE: Clean your drains without the guilt. Our non-acid, biodegradable formula is safe for septic systems, cesspools, and grease traps. It even enhances the growth of active bacteria in your septic system when used regularly. - SAFE ON FIXTURES & PIPES: Unlike harsh acid cleaners, Pure Lye is safe on fine fixtures, chrome trim, and all types of metal or plastic (PVC) pipes. It is odorless and creates no offensive fumes, making it ideal for use in homes, schools, and hospitals. - UNIQUE BEAD TECHNOLOGY: Because of their specific density and shape, these beads sink through standing water to attack the cause of the blockage directly at the bottom of the pipe for a fast, effective break-up of grease and organic matter. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B071NP3QJ5 | | Best Sellers Rank | #20,330 in Health & Household ( See Top 100 in Health & Household ) #50 in Chemical Drain Openers | | Brand | ComStar | | Brand Name | ComStar | | Customer Reviews | 4.5 out of 5 stars 6,977 Reviews | | Global Trade Identification Number | 00024924305027 | | Item Highlight | Unique Beads for Drains, Septic Systems, Cesspools & Grease Traps, Lye for Soap-Making, Bio-Safe, Eco-Friendly, Made in USA Item Highlight Unique Beads for Drains, Septic Systems, Cesspools & Grease Traps, Lye for Soap-Making, Bio-Safe, Eco-Friendly, Made in USA See more | | Liquid Volume | 55 gallons | | Manufacturer | ComStar International, Inc. | | Model Number | 30-502 | | Number of Items | 1 | | Part Number | 30-502 | | Scent | Unscented | | UPC | 024924305027 | | Unit Count | 6400 Ounce | ## Product Details - **Brand:** ComStar - **Global Trade Identification Number:** 00024924305027 - **Manufacturer:** ComStar International, Inc. - **Number of Items:** 1 - **Scent:** Unscented ## Images ![Pure Lye 400 lb Drain Opener 99% Sodium Hydroxide Beads, Soap Maker - Image 1](https://m.media-amazon.com/images/I/51oV8evX-tL.jpg) ![Pure Lye 400 lb Drain Opener 99% Sodium Hydroxide Beads, Soap Maker - Image 2](https://m.media-amazon.com/images/I/81pkY0s5t5L.jpg) ![Pure Lye 400 lb Drain Opener 99% Sodium Hydroxide Beads, Soap Maker - Image 3](https://m.media-amazon.com/images/I/81pVr2lDJqL.jpg) ![Pure Lye 400 lb Drain Opener 99% Sodium Hydroxide Beads, Soap Maker - Image 4](https://m.media-amazon.com/images/I/81-Xsx3XUSL.jpg) ![Pure Lye 400 lb Drain Opener 99% Sodium Hydroxide Beads, Soap Maker - Image 5](https://m.media-amazon.com/images/I/818J+I2vhFL.jpg) ## Available Options This product comes in different **Size** options. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Miracle worker *by J***S on January 28, 2020* My kitchen sink backs into my bathroom sink once a year. The plumber says its roots. I dont beleive him. This year, I wasnt spending $700 for them to come out and clear the lines. Since december I have tried zap stuff, twice and it didnt work. I borrowed a snake, snaked thru the entire line, didnt work. I almost gave up and called a plumber but decided to come on Amazon and look at reviews on drain cleaners. This product does NOT disappoint!!! It arrived about 2 hours ago. I heavily armed myself with protective gloves, eyewear and old heavy clothes. (My dad scared the life out of me about this stuff being very dangerous) I read the directions about 40 times before I was confident enough to use it. I really didnt want to burn an arm off or worse, cause my pipes to melt causing me more money that I dont have. Ok. I followed the direction for a slow drain. First I boiled water and sent that down the drain a few times as it says to "warm the pipes up" then I used one cup of this miracle stuff in each drain. It fizzed, hissed and reminded me of the science experiment in middle school of an exploding volcano that only half works... it erupted, slightly. Then all settled and I waited, and waited. I didnt want to jump the gun at just 15 minutes. This was some major clog we were working with. So while I waited, I started boiling water in ever big pot I had on all my burners. Alexa rang and my time was up! I started off pouring the boiling water SLOWLY down the first drain I dropped the product down. Nothing. No fizzing, no exploding. It just kept draining. Shocked. I ran to my kitchen and started dumping water down the drain... surely it would back up into my bathroom sink again... three gallons down the hatch... i run to the bathroom... it's clear! Holy moly! I put this stuff to the test. I run both the sinks hot water full blast down the kitchen sink and bathroom. Now I'm running back and forth like a crazy woman but guess what! Nooooo clog, no water pooling, nothing. I'm so amazed with this product. For weeks I have been stressing about not having the money to fix this, but after spending under 6 bucks on this stuff I am floored. I will NEVER buy any other drain cleaner again and neither should you! This stuff is a game changer! ### ⭐⭐⭐⭐⭐ I'm totally surprised ... and impressed! It WORKED! *by S***E on May 7, 2013* I read through other Amazon reviews about this product, so decided to give it a try. I have to say, I'm totally impressed! I had a bathroom drain that was nearly completely clogged up, mostly with hair. Ordinarily, I'd have just pulled out the drain plug, dug the hair out with my hemostats, and been done with it. But this particular plug is unnecessarily difficult to get out, so I thought I'd try something else. My first attempt was with some sort of drain cleaner. Directions said to use half of the bottle, I think there was maybe 1/3 of the bottle left, so I used that. Poured it into the bathtub drain, left it overnight, took a shower the next day and saw no improvement whatsoever. It took 1 inch of water in the bathtub about 40 minutes to drain. Expecting the Lye to perform no better than my drain cleaner, poured it down the drain 4 times, rather than "just" following the directions. I reasoned that perhaps most of the solution would drain PAST the hair clog, and NOT dissolve the clog? So, on the first night, I estimated doing what the directions said, 1 cup of Lye dissolved into 1 to 1 1/2 cups of water. Poured it down the drain. Left it overnight. Next day, made up a small solution - maybe half of what the directions suggested, poured it slowly into the drain. Did that, again, that evening, and, again, the next day. Four days later, I took a shower in that particular shower, and it drained just fine, I couldn't believe it! So, now I'm wondering how much the lye actually worked after only ONE administration, rather than 4. But I'm glad and quite impressed that it really did work. In total, I used about 2/3 of the bottle, with plenty left over for other drains in the house. Of note: Lye is not the nicest stuff to use or have around in your house. I found out that when you mix it with water, it generates heat. I could easily feel the heat through the plastic bucket that I used to mix the solution. Lye will chemically burn your skin, to be careful. Don't let it touch your skin, and be especially careful not to get it into your eyes. Also, according to wikipedia, Lye can pull enough water out of the atmosphere to turn itself into a liquid solution (which generates heat) and can potentially ignite other flammable substances (paint? gasoline? paint thinner?) So I'll use ALL of the remaining Lye in my other household drains, and NOT store it in the house or in the hot garage. Knowing full well that the next time the drain even STARTS to drain SLOWLY, the solution is only one quick visit to Amazon and a couple of days away. ### ⭐⭐⭐⭐⭐ Why did I wait so long to try this (have had a bottle since 2018) *by W***E on July 13, 2025* I bought this is 2018 and never used it. Why? I have no clue, maybe I didnt believe the hype? who knows. Fast Forward 7 years, I just moved into a new house (on septic), of which the master bathroom shower is clogged, pretty much have to stand in an inch of water when you shower, which is not nice. I tried this stuff call Drain CLR or something like that. You pour 2-3 ounces down the drain for 5 days. Well this did absolutely nothing. Then I was going through moving boxes in my garage when I stumbled upon this and I figured, what the heck, I remember people raving about this, let me try it. I used it exactly as the directions on the bottle told me too, Ran steaming hot water down the drain, waited for all the water to clear and then poured 3 ounces down the drain. I had a glove on one hand and I did have to move it around for it to all go down the drain, but then I left it for 20 minutes. After 20 minutes, I came back, turned on the steaming hot water and my shower no longer was clogging up.....WHAT? Wow! No idea why I waited so long to try this, but i am a true believer of it now. This stuff works QUICKLY and is septic safe! Love it! --- ## 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.za/products/687874974-pure-lye-400-lb-drain-opener-99-sodium-hydroxide-beads](https://www.desertcart.co.za/products/687874974-pure-lye-400-lb-drain-opener-99-sodium-hydroxide-beads) --- *Product available on Desertcart South Africa* *Store origin: ZA* *Last updated: 2026-08-30*