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ComStar Pure Lye | 99% Pure Sodium Hydroxide Beads | Eco-Friendly, Industrial Strength, Biodegradable Drain Opener | Safe on Fixtures | Static-Free, Unique Beads for Soap Making | 1 lb. (30-500)

4.5 4.5 out of 5 stars 6,492 ratings

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Available at a lower price from other sellers that may not offer free Prime shipping.
1-(Pack)

Purchase options and add-ons

Brand Comstar
Scent odorless
Item Weight 16 ounces
State of matter Solid
Liquid Volume 1 Liters

About this item

  • ComStar Pure Lye is an industrial-strength, eco-friendly, 99% pure Sodium Hydroxide bead formula. It's designed to clear out drains, grease traps, and septic systems by dissolving grease, hair and root growth instantly. ComStar Pure Lye is also a best-selling soap maker!
  • This sodium hydroxide formula is the purest white, bead-size lye in the world—99% pure. A natural drain opener, its non-acid, biodegradable formula is safe on fine fixtures, chrome trim, and metal or plastic pipes, if used as directed.
  • This fantastic product clears clogged and slow-moving drains, grease traps, and septic systems without harming septic or cesspools. Applied regularly, it enhances the growth of active bacteria. Because of its unique bead shape, ComStar Pure Lye will sink to the bottom of standing water and attack the cause of the blockage for a fast break-up.
  • ComStar Pure Lye does not stink or create fumes and has become a favorite drain-opening product for homes, schools, hospitals, cafeterias, and restaurants.
  • Crafters prefer ComStar Pure Lye’s small beads for soap making because they do not clump together, create static, and dissolve quickly. As a result, soap making is faster and easier with ComStar Pure Lye.

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ComStar

ComStar Pure Lye | 99% Pure Sodium Hydroxide Beads | Eco-Friendly, Industrial Strength, Biodegradable Drain Opener | Safe on Fixtures | Static-Free, Unique Beads for Soap Making | 1 lb. (30-500)


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Product Description

ComStar Pure Lye is an industrial-strength environmentally safe, bead formula designed to clear out drains, grease traps, septic systems, and roots. ComStar Pure Lye is also a best-selling soap maker. This sodium hydroxide formula is the purest white, bead-size lye in the world—99% pure. A natural drain opener, ComStar Pure Lye is biodegradable and odorless with a non-acid formula that is safe on fine fixtures, chrome trim, and metal or plastic pipes. This amazing product clears out clogged and slow-moving drains, grease traps, and septic systems, without harming septic tanks or cesspools. Because of the unique bead shape, ComStar Pure Lye will sink to the bottom of standing water and attack the cause of the blockage for a fast break-up. ComStar Pure Lye does not stink or create fumes and has become a favorite drain-opening product for homes, schools, hospitals, cafeterias, and restaurants. ComStar Pure Lye’s small bead form is preferred for soap making. Unlike more common flake formulas, ComStar Pure Lye Beads do not clump together, create static, and dissolve quickly. Because of this, soap making is faster and easier with ComStar Pure Lye.

Important information

Ingredients

SODIUM HYDROXIDE

Legal Disclaimer

You are trying to purchase a hazardous material. First you must agree to the following depending on the product purchased: • You fully understand that this material is considered Hazardous and could cause bodily harm. • You assume all responsibility for its safe use and proper storage. • You are at least 18 years of age. • You understand that it should not be used near an open flame or spark. • You will only use it in a well ventilated area. • If you are unsure about any of these points please call us at 1-800-328-0142 or email us at info@comstarproducts.com and we will answer any questions you have. Thank you for taking the time to consider and understand the risks involved with this hazardous material.


From the manufacturer

Why Choose Pure Lye!?

Final Pure Lye

Final Pure Lye 2

Final pure Lye 3

Unique Bead Size Lye Sinks to the Bottom of a Drain

Used in Drains, Septic Tanks, and Grease Traps

Safe for Fine Fixtures and Chrome Trims

Top Features

Final Pure Lye 4

Final Pure Lye 5

Final Pure Lye 6

Industrial Strength Sodium Hydroxide Solution

Industrial-Strength 99% Pure Sodium Hydroxide Bead Formula.

Bio-Safe Series

ComStar Pure Lye is part of our Bio-Safe series as the ingredients are bio-safe when disposed of properly.

Unique Bead-Sized Lye

ComStar Pure Lye uses a on-of-a-kind Bead Sized formula.

Used by Crafters to Make Hand Made Lye Soaps

Final Pure Lye 7

Final Pure lye 8

Final Pure Lye 9

Beads Don't Create Static or Clump

Easy to Mix and Pour into any Mold

Let Sit for Four Weeks and Enjoy

What's in the box

  • drain opener
  • Looking for specific info?

    Customer reviews

    4.5 out of 5 stars
    4.5 out of 5
    6,492 global ratings

    Customers say

    Customers like the ease of use, quality and value of the drain opener. For example, they mention it's simple to use, works well and is more effective than other liquids. Some appreciate the soap, and durability. That said, opinions are mixed on safety and smell.

    AI-generated from the text of customer reviews

    1,635 customers mention1,346 positive289 negative

    Customers like the quality of the product. They mention it does the job well, works great on stubborn clogged drains, and works well for most blockages. They are also amazed at how quickly it works and how much it saves them from calling a plumber. Customers also say the water goes smoothly down the drain and the drain runs faster than it ever did.

    "...careful to avoid the contact with your skin and such but, man, do these work well. I was using draino like every month just to keep my sink draining...." Read more

    "...faucet at the same time as the washer drain cycle and there was no back-up of water. UNBELIEVABLE!!..." Read more

    "Works well." Read more

    "Works great on stubborn clogged drains." Read more

    148 customers mention131 positive17 negative

    Customers find the product easy to use. They mention that it works well, is easy to handle, and takes very little to work. Some say that the container is easy.

    "Used this to make homemade soap and it worked great and was easy to work with." Read more

    "...However, as long as you follow the directions, it is safe and simple to use, but most importantly, it is EFFECTIVE!..." Read more

    "...I watched a YouTube video to see how to apply the lye. It was simple enough. I placed the lye in the drain and followed the steps...." Read more

    "I don’t like the smell but it’s very easy to use, I use it at least once a month for both kitchen and bathroom sink water pipe to prevent clog...." Read more

    65 customers mention65 positive0 negative

    Customers find the soap good for making soap. They say it's a good source of lye for soap making, and is perfect for making goats milk soap. Customers also mention that it'll make a nice bar of soap.

    "...I didn’t expect much since I had no experience but the soap turned out really good! It got stains out of my carpet that I didn’t know could come out!..." Read more

    "...Buy from the source - also makes great home-made soap..." Read more

    "GREAT for any drain in the house. Much better than a liquid product. Just follow the directions and it gets the job done...." Read more

    "...concerned that because it said 99% lye it would not work but it made great soap, it will make the lye solution little yellow instead of clear when..." Read more

    63 customers mention63 positive0 negative

    Customers are satisfied with the durability of the product. They mention that it is super strong, powerful, and reliable. They also say that the consistency and potency are reliable. Customers also say the jar seems to last a long time and that it never fails. They say it does a good job breaking up tough clogs and that they highly recommend it for stubborn clogged.

    "...Highly recommend for stubborn clogs." Read more

    "...It's a very strong desiccant so it basically absorbs moisture from anything - air, crap in your pipes, and skin -- so wear gloves otherwise if you..." Read more

    "...Must wear gloves and safety goggles, stuff is powerful" Read more

    "...This lye works so well and can last for at least 4x longer than the liquid drain cleaner. It's saved me a lot of time and money...." Read more

    54 customers mention42 positive12 negative

    Customers like the opening of the product. They say it opens the drain almost instantly, is more effective than other liquids, and is great for opening clogged drains. Some say it's a no-nonsense drain opener for a fraction of the cost.

    "I used it to unclog a kitchen drain. The drain opened immediately." Read more

    "...Can hardly believe it! The drain is open!!..." Read more

    "...Waited about 20 minutes and flushed with hot tap water. Magic! Drain is now open. Recommended, I will buy again." Read more

    "...As most of this settles to the bottom, the drain is now 100%, fully obstructed...." Read more

    83 customers mention29 positive54 negative

    Customers are mixed about the safety of the product. Some mention that it's safe and simple to use, while others say that it can cause chemical burns and damage pipes. The warning was a little scary, but the rave reviews made it hard to pass up.

    "...and maintain a healthy fear of lye, because the stuff is really dangerous to play around with if you're not taking all the precautions." Read more

    "...However, as long as you follow the directions, it is safe and simple to use, but most importantly, it is EFFECTIVE!..." Read more

    "...First, this stuff, pure NaOH, is dangerous, as it can burn holes and even dissolve flesh—it’s the stuff that Walter White should have used in..." Read more

    "...this stuff is not for the average DIY guy, this has a STRONG reaction when you first pour some into the drain...." Read more

    79 customers mention36 positive43 negative

    Customers are mixed about the smell of the product. Some mention that there is no odor, and no hazards what so ever, while others say that the fumes can be pungent and potentially dangerous. They also mention that mixing with water does create fume, and that there's a toxic residue on the outside of the bottle.

    "...And what's worse is that it was spewing a sort of chemical "smoke" in the air! So that didn't work; I was left with about a half a bottle...." Read more

    "...Now the sink drains the way it should.There was no smell or vapors involved, at least that I can tell...." Read more

    "...little fumes will be coming up and it smells bad, but it works great. I did it two times with every sink and one bathtub...." Read more

    "...No bad smell appears,I have purchased three bottles in a row" Read more

    112 customers mention29 positive83 negative

    Customers find the value of the product to be poor. They mention that it's a complete waste of money, not a perfect product, and not worth the hassle of buying. Some customers also say that the product is overpriced and not very effective.

    "...Many of the gels work fairly well, but are very expensive and require you to have a poisonous liquid under your counter...." Read more

    "...The others are a complete waste of money." Read more

    "Dry effective for the money" Read more

    "...Unfortunately, however, I have not experienced great results...." Read more

    powder of sink clearing +5
    5 Stars
    powder of sink clearing +5
    Draino, Liquid Plumber, Snakes, and whatever other random baking soda wanna-be-awesome recipes that exist on the internet have all failed. BUT THIS WORKED. I was at my wits end for how to clear this clog. My kitchen sink has been clogged since I moved into this place, and even the building maintenance just kept coming and re-snaking it. All that did was upgrade it from no-drain to slow-drain. Armed with thick kitchen gloves and swim goggles (don't judge) I poured in one cup of this product followed by a pitcher or steaming hot pre-boiling water. I quickly covered the drain hole and jumped back! But alas, nothing happened. Slowly, I peeled my googles off and waited for a noise, or a reaction or a ... something. After several long minutes, I accepted defeat and trudged back to my couch. A mere 15 minutes later I heard this loud ... sucking ... sound. I dashed (or at least crookedly half jogged) to the kitchen to find that the water in my sink was being quite forcefully sucked under my (albeit flimsy and totally old) sink drain cover. Carefully with a wooden spoon I nudged away the drain cover and watched all the leftover water flush away. I turned the hot tap on for about 15 minutes and watched as steaming hot water gushed into my sink and down my pipes as if the sucker was brand new. I REJOICED with the voice of a THOUSAND ANGELS. Well, not really, but that sounded a lot better than 'I had a beer'. Sooooo, yeah, I love this stuff forever. It totally is the best.
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    Top reviews from the United States

    Reviewed in the United States on March 9, 2024
    Size: 1-(Pack)Verified Purchase
    One person found this helpful
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    Reviewed in the United States on March 11, 2024
    Size: 1-(Pack)Verified Purchase
    Reviewed in the United States on July 23, 2023
    Size: 1-(Pack)Verified Purchase
    28 people found this helpful
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    Reviewed in the United States on February 23, 2015
    7 people found this helpful
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    Top reviews from other countries

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    John
    5.0 out of 5 stars Saved my expensive drill bits.
    Reviewed in Canada on September 28, 2022
    Size: 1-(Pack)Verified Purchase
    Adrian Gutierrez
    5.0 out of 5 stars Algo tardado pero buen producto
    Reviewed in Mexico on October 7, 2019
    Size: 1-(Pack)Verified Purchase
    Japas
    5.0 out of 5 stars Handle with care. Wear safety goggles and proper gloves
    Reviewed in Canada on April 24, 2021
    Size: 1-(Pack)Verified Purchase
    mark williams
    5.0 out of 5 stars Worth buying
    Reviewed in Canada on January 3, 2018
    Size: 1-(Pack)Verified Purchase
    Shane spencer
    3.0 out of 5 stars Three Stars
    Reviewed in Canada on November 15, 2017
    Size: 1-(Pack)Verified Purchase