Clorox® Pool&Spa™ Swimming Pool pH Down, Lowers pH, Protects Against Eye and Skin Irritation, 5LB (Pack of 1)
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Availability:
In Stock.
Arrives
Tuesday, Sep 8
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Size: 1 Count (Pack of 1)
Features
- Protects From Scale - This product provides protection against scale buildup in your pool, offering a safer and easier alternative to using Muriatic acid. Ideal for all pool types, it features an easy-pour design and splash-free application.
- Protects Pool Equipment from Corrosion: By keeping your pool's pH level balanced, this product helps prevent equipment corrosion, allowing you to spend less time maintaining and more time enjoying your swimming pool.
- Preserves Pool & Equipment - Unbalanced water can cause a corrosive environment that damages your pool surfaces or equipment. This product reduces pool maintenance, extending the life of your pool's cleanliness.
- Clorox Pool App: Test like an expert anytime, anywhere with the Clorox Pool App. Solve common swimming pool problems and get personalized product and dosage recommendations
Description
Clorox Pool&Spa Swimming Pool pH Down, Lowers pH, Protects Against Eye and Skin Irritation, 5LB (Pack of 1);12105CLX.
Brand: CLOROX Pool&Spa
Item Weight: 5 pounds
Item Form: Granular
Product Benefits: Prevents Scale, Protects Against Skin Irritation
UPC:
Brand Name: CLOROX Pool&Spa
UPC: 810821023047
Global Trade Identification Number: 47
Number of Items: 1
Unit Count: 80 Ounce
Item Type Name: pH Down, 5 lb.
Manufacturer: Clorox® Pool&Spa™
Model Number: 12105CLX
Manufacturer Part Number: 12105CLX
Item Form: Granular
Product Benefits: Prevents Scale, Protects Against Skin Irritation
Item Weight: 5 pounds
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Tuesday, Sep 8
Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
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Similar Products
Top Amazon Reviews
Size: 1 Count (Pack of 1)
5 Stars — Effective and Easy-to-Use Pool pH Reducer This Clorox Pool&Spa pH Down worked exactly as expected and helped bring my pool water back into balance quickly. My pH had drifted higher than recommended, and after following the dosage instructions, I noticed improvement within a short amount of time. The water looked clearer, and it felt much more comfortable for swimming afterward. The granules dissolved well when added properly, and the packaging was sturdy and easy to reseal between uses. I also appreciate that the instructions on the bag are straightforward and easy to understand, even for routine maintenance. One thing I liked is that it allowed me to make gradual adjustments without overcorrecting the water chemistry. After testing again later, the pH levels stayed in a much better range, which also helped the chlorine work more effectively. Overall, this has been a dependable pool maintenance product from a brand I trust. It’s easy to use, effective, and a useful item to keep on hand during pool season.
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Reviewed in the United States on May 18, 2026 by Amazon Customer
Size: 1 Count (Pack of 1)
Good stuff. Brought my pool into good PH.
Reviewed in the United States on July 22, 2026 by Dr Leslie M. S. Griffiths
Size: 1 Count (Pack of 1)
I’ve had a very good experience using the Clorox Pool&Spa pH Down product for my pool maintenance routine. It helped bring my pool’s pH levels down quickly and made the water feel much more comfortable for swimming. After using it, the water looked clearer and seemed gentler on the eyes and skin. The instructions were easy to follow, and the product dissolved well without creating a mess. I also like that a little goes a long way, so the container lasts longer than expected. Overall, this is a reliable and effective pool chemical that makes maintaining balanced water much easier.
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Reviewed in the United States on May 7, 2026 by Texas Legend
Size: 1 Count (Pack of 1)
It works as expected to lower my pool pH. However, it's not as convenient to use as liquid Muriatic acid. I have to be careful and spread it evenly, in small amount over the pool to prevent damage to pool. For larger amount needed, I have to pre-disolve in a bucket of water, then put in the pool. Much more work than using liquid. It is convenient in that I can subscribe and get a shipment every month to keep my pool balanced. Overall, it was worth it.
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Reviewed in the United States on December 29, 2023 by TLe_the_bookworm
Size: 1 Count (Pack of 1)
Works pretty good for removing Algae from my pool and helps keep the water clear. I find this a lot more convenient adding this powder for of acid rather than going to the local box store and buying 2 gallons of muriatic acid.
Reviewed in the United States on June 26, 2026 by AmazonNan
Size: 1 Count (Pack of 1)
Works as well as any other PH down and it was about as cheap as I could find at the time.
Reviewed in the United States on June 13, 2026 by Gerardo
Size: 1 Count (Pack of 1)
The current price is affordable comparable at this price to Liquid acid. My Ph was at or even above 8 and my TA was 140 too. I know even if I bring down the PH I need to get the TA down too (be sure your CYA is no more than 60 ppm or you need to bring it down because it interferes with the testing on TA (higher than it really is per Taylor Technologies), so remove some water and refill if you have to. This is why I use Liquid Chlorine instead of tabs because even if you started the pool with 30-50 CYA as recommened, each tab will add 6ppm CYA too and that adds up quickly causing you to go through higher amounts of Chlorine to do the job. But PH is extremely important on how much effectiveness you get out of your FC, so first PH and then address the chlorine. I have a 10,000 gal play pool and I can't keep FC in the pool, but the first thing I am getting under control is the PH which can be done in 1-2 days with this product. 7 oz of dry acid is suppose to be equal to 1 cup liquid acid. At frst the PH was stubborn to come down the first tretment of 3 cups Chlorox PH down, but each subsequent treatment of 2 cups taking about 5 treatments in 2 half days. It went like this; started at 8 ppm with 3 cups and after was still 8ppm, next treatment started at 8, came down to 7.8 over night it went back to 8, next treatment start at 8 and dropped to 7.6, I didn't stop there because my TA will 100 and my experience tells me it won't hold so I did nothr treatment right away with 22 more cups and wallah ph is 7.2 and TA is now 80 which I'm hoping is low enough to stablize the PN from constantly rising. If not I will treat again (no lower than 7.2 and test TA again and see if 60 is the sweet spot. I have added non chlorine shock and alage 60 too to control any algae blooms and some chlorine too at night only. This has taken two and one half 5 lb bags of Chlorex PH down 93% to accomplish this. I am determined and hope Chlorox doesn't increase their price or I willhave to look at other options. I can't use and won't use muriatic acid.
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Reviewed in the United States on June 21, 2024 by Dee
Size: 1 Count (Pack of 1)
Maintaining the perfect pH balance in my pool has always been a priority, and the Clorox Pool&Spa™ pH Down has become an indispensable part of my pool care routine. Quick and Efficient pH Reduction: This product works swiftly to lower high pH levels, bringing the water back to the ideal range of 7.2 to 7.8 ppm. I’ve noticed that after application, the pH levels stabilize within a few hours, ensuring the water remains comfortable for swimmers and safe for pool equipment. User-Friendly Application: The granulated formula dissolves quickly without clouding the water, making it easy to apply. The packaging provides clear instructions, and the resealable bag ensures safe and convenient storage. Enhanced Safety Compared to Alternatives: Unlike liquid acids, this dry acid is safer to handle, reducing the risk of spills and fumes. It’s a more manageable option, especially for residential pool owners seeking effective results without the hazards associated with harsher chemicals. Additional Benefits: Regular use of this product not only maintains optimal pH levels but also helps prevent scale formation on pool surfaces and equipment. This proactive approach extends the lifespan of pool components and ensures a more enjoyable swimming experience. Final Thoughts: The Clorox Pool&Spa pH Down is a reliable and effective solution for maintaining balanced pool water. Its ease of use, safety, and efficiency make it a top choice for both novice and experienced pool owners. I highly recommend it to anyone looking to keep their pool water crystal clear and perfectly balanced
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Reviewed in the United States on May 8, 2025 by P2026