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Ma'am
Reviewed in the United States on February 6, 2025
It helped unclog my shower drain well enough to use it normally again. I used it after taking a hot shower, since it usually fills up from the clog it had plenty of time to heat up the pipes so I poured it down the drain once the water got low enough. It took a few tries, an overnight sit, and lots of boiled water but I can take a shower without worrying about it filling up anymore. Make sure to use this with gloves though, it burns skin if you don't notice you got it on yourself and its left too long.
Austin Pedreira
Reviewed in the United States on February 24, 2025
Can’t recommend enough
ExNYer72
Reviewed in the United States on January 24, 2025
No complaints thus so far. Cleans shower drain of soap scum and hair build up; cheaper than draino!
Lisa Smith
Reviewed in the United States on June 5, 2024
ComStar Pure Lye, with its 99% pure sodium hydroxide beads, has been a lifesaver for my shower drain.After trying several other products without success, ComStar Pure Lye finally cleared my stubborn shower drain clog. The powerful, industrial-strength formula works where others fail.Using it was straightforward. I followed the instructions, and within minutes, my shower drain was running smoothly again. No more standing in ankle-deep water! Despite its strength, this lye is eco-friendly. It breaks down naturally, so I didn’t have to worry about harming the environment while fixing my drain. A small amount was all it took to solve the problem, making this a very economical solution. The 99% purity ensures you get the most out of every bead.
John
Reviewed in Canada on September 28, 2022
Have no idea if it unclogs toilets or sinks, but it repairs drill bits damaged by aluminum buildup amazingly well. By leaving the bits in a solution of water and Lye overnight, even Drill Flutes totally clogged with aluminum were completely free. Saving me major $ and headaches. Had no idea it would work so well!
Japas
Reviewed in Canada on April 24, 2021
As described
Adrian Gutierrez
Reviewed in Mexico on October 7, 2019
Buen producto
mark williams
Reviewed in Canada on January 3, 2018
Arrived sooner than expected. Works better than drano, apparently.
Shane spencer
Reviewed in Canada on November 15, 2017
This didn't fix my clog
Rhayah3
Reviewed in the United States on May 10, 2016
This stuff really works! I had a really bad clog in my kitchen sink and I'm on septic and since this is safe for septic tanks (except MA due to state law) I figured I'd give this a go before asking my SO to snake the drain since that's such a messy job. I ended up using the whole bottle to clear the drain. The clog was so bad that it literally took ~6-8 hours to drain the sink. The bottle comes with ~2 cups of beads. You use 1 cup per application so if you only have to use 1 cup to clear, you'll have enough left over for a future clog. See below for exact steps I took.The first cup, I followed the directions almost exactly: waited for the sink to be empty, poured 1 cup of beads down the drain, boiled ~3 cups of water and poured all of it down to dissolve the beads, heard a growling sound for a few secs, waited ~5 minutes then ran hot tap water to see if the drain was clear... it wasn't and didn't seem to make a difference at all.So I did a little research on the net and found that you should let the pipes empty as much as you can down to the clog or the lye can become too diluted by the time it reaches whatever is causing the clog. So with the second attempt, I didn't use the kitchen sink all evening and let the pipes fully empty overnight. Then first thing in the morning I poured the rest of the bottle down the drain, boiled water again but this time I only used ~1/2 cup to dissolve the beads. I poured just enough water until the beads were dissolved and the "growling" sound started. The sound went on for a bit longer than the first time I used it and it seemed to "fall" away from me as it went down the pipe. I then left it for ~2 hours. I then boiled ~3 cups of water and poured it down the drain. Again, I heard the growling sound and assumed it was still working on the clog so I left it for ~15 minutes. Again, I boiled ~3 cups of water, poured, growling sound, left alone for ~15 mins. I repeated this process (boil ~3 cups, pour, left alone ~15 mins) until the growling sound stopped (maybe 4 or 5 times). I then ran hot tap water and it looked like it worked but then both sinks filled slightly above the drain. I turned off the tap and about 20 secs later, the drains bubbled a bit then emptied as expected. I then ran hot tap water for ~3 mins and no more clog. The sink drains like a champ now! I will be ordering more of this stuff so I have some on hand for the next clog. Highly recommend.
Duho An
Reviewed in the United States on April 12, 2016
tl;dr: Had slow draining tub. Tried everything. Nothing worked. Did Pure Lye + 3 pots of boiled water. Problem solved.I don't write too many reviews, but this product is more than worth the $$.I have been struggling with a slow draining bathtub for about a month.Every time I took a shower, the water quickly reached ankle deep. When my wife took a shower, the tub was half full.Of course the result is that lots of hairs and dirt remains in the tub after the waster drains in a few hours. Not very sanitary.During that time I tried every clog remover method available to men.Draino MAX? Tried it. Hot water? Many times. Plunger? 'Till my arms hurt. Baking soda and vinegar? Had no effect. Snake? Nothing came out.I requested a maintenance service to the management, but they simply ignored it.So after searching around the web, I decided to purchase Pure Lye Drain Opener as a last resort.After waiting for a week, it was finally delivered today. As soon as I got home, I went to work.I boiled a pot of water and poured it down the drain. While the water was slowly going down the pipe, I poured 1/4 of pure lye into the drain opening.I didn't know what I was hoping for, but the reaction was bit of a let down. The beads didn't look like they were dissolving and water was still draining slowly. It actually looked like water was draining even slower!So I poured more Pure Lye into the drain and boiled another pot of water.When I poured boiled water in the drain, there was a distinct reaction as I saw the beads dissolving and flowing into the drain.I turned on the faucet and as the water was draining (still a bit slow), I heard gurgling sound within the pipes.I poured even more Pure Lye and another pot of boiled water into the drain. It was looking very good indeed!After about 3 hrs, I decided to check out the drain as I took a shower. Lo and behold! The water was going down like it's never been clogged! What a relief!I had used about 2/3 of the bottle for all this work. I think I'll use the remainder at the first sign of trouble.This will be the only clog remover/drain opener I (or anyone) will ever need.
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