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Extends Equipment Life

Unbalanced water can cause a corrosive environment that can damage your pool surfaces or equipment.

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Protects Against Eye and Skin Irritation

Improves swimmer comfort by preventing dry itchy skin and red burning eyes.

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Balances Water

Helps to restore water parameters to their ideal ranges.

Product reviews

Write Review

good easy product

This product does what it says it will do. Not much more I can add.
Ease of Use: 5 Effectiveness: 5
07/09/2020
wesTex V
Midland Texas

pH Down

Product worked as directed as do all of Clorox Pool Products. I only use their products for my pool.
Ease of Use: 5 Effectiveness: 5
07/03/2020
BoSoxSully59

Dosage

It is a dry product…..and dosage is on OZ?????? It would be smart and fair if you inform the dosage in an other type of measure…..like a cup….
Ease of Use: 1 Effectiveness: 4
05/14/2020
Daniel
winter garden

add ozs

it may be a great product, but the instructions are to add x ounces. its a powder, so i suppose we need a scale to measure ounces? would be nice if there was translation for some kind of volume measurement like cups, tbs, tsp or whatever.
Ease of Use: Effectiveness:
04/13/2020
matt

Never in Stock

I need to use this product weekly and it is almost impossible to find in Clearwater, FL stores. Publix, Lowes and Walmart are always out of stock. What seems to be the problem? Guess I’ll have to go back to using Muriatic Acid.
Ease of Use: 5 Effectiveness: 5
01/31/2020
SteveZ
Clearwater, FL

Works for hot tub

Works good on small hot tub. Use one capful over several days to lower ph
Ease of Use: 5 Effectiveness: 4
10/08/2018
Tiger_1966
Festus, mo.

Works Great

I have always used Clorox pool supplies and the ph down works great.
Ease of Use: 5 Effectiveness: 5
09/16/2018
Alysonkelley

Perfect Product, Easy to use!

This product is very easy to use especially when you download the Clorox Pool&Spa app!
Ease of Use: 5 Effectiveness: 5
07/29/2018
Msiegel

Great Product

lowers high ph as advertized i dont use this but a few times a year but works fast
Ease of Use: 5 Effectiveness: 5
07/27/2018
firefly

Great product

Great price and easy to use, My PH was way to high. I have used many other products, but none work this quickly.
Ease of Use: 5 Effectiveness: 5
07/26/2018
Chris

Ease of Use: 5 Effectiveness: 5
07/04/2018
Dholmes

Easy to use

I like this MUCH better than liquid acid. This seems more expensive than acid BUT I think it’s better than it seems at first because this product seems to go further. With the granules I don’t need to worry about splashing. This is easy to use. Much easier to measure. I think the results are faster than acid also. I received this free in exchange for this review.
Ease of Use: 5 Effectiveness: 4
06/18/2018
JC77

Ph Down

Had to use this product when we opened our pool up this yr. Product was great, easy to use and did the trick in lowering the ph in our pool!
Ease of Use: 5 Effectiveness: 5
06/18/2018
Whoababy23

Works fast!

This was our first year with a pool. We filled with our garden hose and started off with a high ph level. This product worked quickly and efficiently!
Ease of Use: 5 Effectiveness: 5
06/06/2018
PoolRookie
Kenton, Ohio

I finally was able to use this product the other day. It seemed I went a little overboard with the pH up. It worked as well as the pH Up product. I do recommend if anyone ever needs to lower their ph levels down.
Ease of Use: 5 Effectiveness: 5
11/12/2017
emily

Works great

PH down does what it says says it does. Works great.
Ease of Use: 5 Effectiveness: 5
08/05/2017
Gagan

Why?

At this time I cannot recommend this product. Love your app but it keeps telling me to add this to lower the PH. Been trying for two months and about twenty-five pounds or so and it doesn’t put a dent in the PH so my chlorine will not work. In twenty-seven years of owning a pool I have never had this problem.
Ease of Use: 5 Effectiveness: 1
08/01/2017
NMRA10702
Louisville KY

Great product

Product works great and fast, for the money it’s a better value than cheaper brands.
Ease of Use: 5 Effectiveness: 5
07/31/2017
felipes

Fantasy product

Works great. The only brand I have used for 2 years.
Ease of Use: 5 Effectiveness: 5
07/27/2017
Chas

Ease of Use: 5 Effectiveness: 5
07/19/2017
Me123

Great

Just use the test strips and follow recommended use and it works
Ease of Use: 5 Effectiveness: 5
07/19/2017
Phillipskeith65

Easier to use than acid

is keeping my ph in check, and is much easier than handling acid.
Ease of Use: 5 Effectiveness: 5
07/16/2017
turbo

Fixed my mistake

I accidentally put too much pH up in my pool and was having people over later in the day. I followed the instructions and it dropped my pH within a few hours.
Ease of Use: 5 Effectiveness: 5
07/15/2017
PowhatanPBJ

Easier than liquid acid

I am always afraid of dealing with liquid acid and what can happen. This is WAY easier and I really like it.
Ease of Use: 5 Effectiveness: 5
07/15/2017
Pamella

Works very well!

The ph down works very good, almost too good. I used it to control a ph spike last week by following the chart on back. I have noticed that it tends to drop the ph too much by following the chart, so I half it and then check the ph again.
Ease of Use: 5 Effectiveness: 5
07/13/2017
dwjr2305

Great product

A product that delivers over my expectations yes I will buy Clorox PH down again
Ease of Use: 5 Effectiveness: 5
07/13/2017
Lee9871

easy to use

I normally use muratic acid to lower my PH level, but this is so much easier and accurate with a chart to refer to on the bottle based on my readings. I don’t have to worry about splashing dangerous acid onto my self or decorative stone lining my pool now with this product.
Ease of Use: 5 Effectiveness: 4
07/12/2017
AGWright

Works Great!

An advanced product to help me keep my pool balanced.
Ease of Use: 5 Effectiveness: 5
07/12/2017
KenH

Ease of Use: 5 Effectiveness: 5
07/11/2017
Mtbepic77

Not working for me

I have used the whole bottle but pH is still too high.
Ease of Use: 5 Effectiveness: 2
07/11/2017
ROSIE

Fantastic product

wonderful product! every product from Clorox has been wonderful
Ease of Use: 5 Effectiveness: 5
07/11/2017
kate1958

Not much luck

Seems like I don’t have much luck with this. I put it in and the next day it ask for more. And again and again. Not sure what I am doing wrong.
Ease of Use: 5 Effectiveness: 1
07/11/2017
Julia

Great product!

This product has lowered my pH quickly and has maintained it at a good level for several weeks. I had bought gallon after gallon of muriatic acid to keep the pH down, but this product does it better and lasts longer.
Ease of Use: 5 Effectiveness: 5
07/10/2017
DanStark

Great product

Thie product worked excellent for me. My pool is now crystal clear and ready for swimming!
Ease of Use: 5 Effectiveness: 5
07/10/2017
Angie

Good Brand Product

Haven’t had to bring down the pH of in-ground pool this year. Usually have to go with the pH up product. Being a Clorox product I have on the shelf, will be ready if neede.
Ease of Use: 5 Effectiveness: 5
07/10/2017
chulk

Perfect for when in a Phinch 🙂

This stuff just works. I’ve never had an issue with this other than the water being cloudy for an extra day or two after use.
Ease of Use: 5 Effectiveness: 5
07/10/2017
MUUM

Super product

Great product when needed to use – suggest adding text on product label indicating cups to pound ratio
Ease of Use: 4 Effectiveness: 5
07/10/2017
Jimpro27

Works great!!!!

This product works great takes effect and lowers the ph quickly. You can retest in just a few hours. The container is easy to open and has easy to understand directions.
Ease of Use: 5 Effectiveness: 5
07/10/2017
Moe13

Does the job

No frills on the package but does exactly what it says. Wish it had a better way to measure how much is being used.
Ease of Use: 4 Effectiveness: 5
07/10/2017
simplex

Great product, does what it says on the label!

In my haste to get my pool ready, I over compensated with the pH Up and this was the perfect solution to get me back down where I needed to be.
Ease of Use: 5 Effectiveness: 5
07/10/2017
Jacob

Superior product!

Great product that can be used with confidence which is typical for Clorox products.
Ease of Use: 5 Effectiveness: 5
07/10/2017
Batman

Great!!!!!

Easy to use instructions. Product works fantastic!
Ease of Use: 5 Effectiveness: 5
07/10/2017
Michellee

great product

haven’t had the chance to use this one yet. but still a great product
Ease of Use: 5 Effectiveness: 5
07/10/2017
burgess88

Works great!

quick acting – I usually have problems with low pH but with all the rain ithis summer, I’ve had both problems (low and high + algae growth and other problems that come with monsoon like rains.) Clorox is my ‘go-to’ brand of choice!!
Ease of Use: 5 Effectiveness: 5
07/10/2017
shabby prairie

Awesome product!

Clorox’s pool and spa pH down is a great product. It is easy to use along with the Clorox Smart Strips and Clorox app at getting the right amount of pH down to help lower the pH levels. The product dissolves quickly and helped to lower my pools pH levels.
Ease of Use: 5 Effectiveness: 5
07/10/2017
Camp76

Great products!

All the products in the Clorox line work wonderfully . They save us so much time and money because they keep our water pristine !
Ease of Use: 5 Effectiveness: 5
07/10/2017
Kristallynn24

pH Down

With my salt water pool I have to lower the pH more often especially with a lot of rain which we have had this year so far.
Ease of Use: 5 Effectiveness: 5
07/10/2017
LexingtonSCRick

Simple le and easy to use

Trust all Clorox brands it’s easy, safe and effective.
Ease of Use: 5 Effectiveness: 5
07/10/2017
Chiasson1111

Great item

It is easy to adjust your ph with this item. I requires little effort.
Ease of Use: 5 Effectiveness: 5
07/10/2017
Robert cp

Wonderful Product

Easy to Use. Test your water and then use the recommended amount.
Ease of Use: 5 Effectiveness: 5
07/06/2017
Mom2my3kids

works fast

Ph in pool was too high, added product ant it lowered ph quickly.
Ease of Use: 5 Effectiveness: 5
07/06/2017
apee

Good but…

I usually use muriatic acid and this seems safer and easier to handle. How ever the directions for use by the app uses pounds and ounces, so you need to weigh out the amount recommended amount-who keeps a scale for that? Also it is very slow to dissolve.
Ease of Use: 3 Effectiveness: 4
07/04/2017
Tory

Great priduct.

Works quickly to lower ph quickly and is easy ti yse.
Ease of Use: 5 Effectiveness: 5
07/04/2017
Trisha

Product work as promised

Nothing out the ordinary but it work like it was supposed to with out safety issues when using mauratic acid
Ease of Use: 5 Effectiveness: 5
07/03/2017
JRay

Performs as advertised

ph drifted a bit above acceptable range. Added this product as directed, and dropped it right back into range within a day.
Ease of Use: 5 Effectiveness: 5
07/03/2017
Adam

Great product

This product works. We have tried others and have not had success, but this one really works.
Ease of Use: 5 Effectiveness: 5
07/03/2017
Jack71jj

Great product

Great product. Easy to follow directions. Works great
Ease of Use: 5 Effectiveness: 5
07/03/2017
Jeffhe

It works

Usually I have low ph, but occasionally I have high (if I add too much of the ph up) and it works great to lower it.
Ease of Use: 5 Effectiveness: 5
07/03/2017
Paula K

Works Great!

Fantastic product, lived up to my expectations. Works as advertised, dissolved fast.
Ease of Use: 5 Effectiveness: 5
07/03/2017
Buford77

Ph up

Easy to use. Nice packaging and works exactly like it should.
Ease of Use: 5 Effectiveness: 5
07/03/2017
Alabama grandma

awesome

use the clorox brand for less problems and clear and cleaner water
Ease of Use: 5 Effectiveness: 5
07/03/2017
spiker

Works ok

This barely brought my ph down to where I needed it.
Ease of Use: 5 Effectiveness: 3
07/03/2017
hotpockets17

Great product

Great product. Easy to use. Less worrisome than liquid acid. Work as expected.
Ease of Use: 5 Effectiveness: 5
07/03/2017
robmen

Love Clorox Pool!

This product worked very well as I was opening my pool and trying to balance the chemicals and clear the water.
Ease of Use: 5 Effectiveness: 5
07/03/2017
Lisahse

So much easier

Powder is easier to measure, use, and seems lots safer than using liquid acid! And just as effective.
Ease of Use: 5 Effectiveness: 5
07/03/2017
jpfool

Best I have Used

Clorox PH Down is the best product I have found for water balance and ease of use.
Ease of Use: 5 Effectiveness: 5
07/03/2017
poolkeeper

Fantastic product

Clorox pool and spa products are superior to any others I’ve used in the past. Very dependable product
Ease of Use: 5 Effectiveness: 5
07/03/2017
bobbyj

Ease of Use: 4 Effectiveness: 5
07/01/2017
Gryphyn

Great product

Does as it says with no mess.easy to use.Very simple directions.
Ease of Use: 5 Effectiveness: 5
07/01/2017
Sandy

Fantastic product

Great product does exactly as expected will use more in future
Ease of Use: 5 Effectiveness: 5
06/28/2017
Cindy

Clorox Products

ALL OF CLOROXPOOL PRODUCTS ARE THE BEST. I USE ALL OF THEIR PRODUCTS. 1# POOL PRODUCTS
Ease of Use: 5 Effectiveness: 5
06/27/2017
Sandman63
Winston-Salem nc

no effect

it had no effect took sample to pool store told me the ph was at 8.1. so i got this product and sense nothing has happen
Ease of Use: Effectiveness:
05/22/2017
clorox user

Didn’t work

I had a ph of 7.8, added the ph down, and the next day it was over 8.4! Nothing has changed, no rain or debris. Wasn’t effective and made things worse. I buy all of my products from Clorox and have spent a lot with them and am not happy at all, very disappointing.
Ease of Use: Effectiveness:
04/12/2017
Mandi

It works

Not much to say. It drops your pH effectively. I like the packaging to .
Ease of Use: Effectiveness:
10/05/2016
John

Doesn’t seem to work

Tried this for 2 days with result. Don’t know why it’s ineffective
Ease of Use: Effectiveness:
09/05/2016
Donny

Doesn’t work

I have put jugs of this stuff in my pool this summer. Can not get the ph to come down!
Ease of Use: Effectiveness:
08/31/2016
Dixie