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Doheny's pH Minus, pH Down for Pools | Lower Your Pools pH | Pro-Grade Sodium Bisulfate (Dry Acid) |

Free shipping on orders over $29.99

$74.99

$ 36 .99 $36.99

In Stock

About this item

  • Swimming Pool Supplies: The ideal addition to your supply of pool chemicals, as every perfect pool starts with the proper pH levels
  • Multi-Purpose pH Minus: This pH decreaser for pools helps increase the effectiveness of all your other pool chemicals
  • Benefits of Properly Balanced pH: Our pH minus reduces high pH levels while helping reduce equipment corrosion, eye irritation, and skin dryness
  • Ingredients: Sodium Bisulfate or "Dry Acid"
  • Packaging: Available in convenient-to-use 5- and 10-lb pouches or 30-lb bulk bucket



Product Description

Doheny's Balancers

Balance Pool With Ease

Balance Your pH Levels With Ease

Balancing your pool's pH levels has never been easier with Doheny's pH Plus, pH Minus, and Alkalinity Up! Keep your pH level between 7.2 and 7.6 ppm. Staying within that range will keep you and your pool equipment safe. On top of that, having a balanced pool will prevent scaling or cloudy water.

Remember, always adjust your Alkalinity levels before adjusting your pH levels. Alkalinity acts as a buffer for your pH levels. If your Alkalinity levels are out of balance, you will never be able to get your pH properly adjusted because it will never “lock in”. By making sure that your Alkalinity level is at 80-120 PPM first, then balancing your pH, it will be more stable and less susceptible to “pH drift”. pH drift occurs when your Alkalinity is out of balance and it causes your pH level to fluctuate wildly depending on bather loads and rain.

Calcium Hardness Levels

Stabilize Your Calcium Hardness Levels

Prevent stains and corrosion with Doheny's Calcium Plus and Calcium Reducer! Our strong solutions are built to act fast and work hard so you don't have to. Don't allow your Calcium Hardness levels to fall below 200 ppm. For plaster pools, maintain a range of 225-300 ppm and for vinyl, fiberglass, and non-masonry pools maintain a range of 175-225 ppm. If you are using well water in your swimming pool, a properly balanced calcium hardness level is a must!

Protect Chlorine from sun's UV rays

Increase Your Chlorine Effectiveness

Make your chlorine work more efficiently with Doheny's Stabilizer! Using our stabilizer protects your chlorine from the sun's UV rays, making your chlorine last much longer. Chlorine levels too high? Not a problem! Use Doheny's Chlorine Neutralizer to quickly lower your chlorine level to a safe range.


Cecil E. Hill
Reviewed in the United States on February 9, 2025
A great product and you get a great bucket too.
help if I can
Reviewed in the United States on August 20, 2024
Works great to lower the PH in my swimming pool
Upstate NY Guy
Reviewed in the United States on October 31, 2024
Lowered my ph, but prefer to use muriatic acid as it works faster
mulligan
Reviewed in the United States on October 2, 2024
This product is the same as the Clorox brand but cost 4 times as much. On top of that you have to pay the return shipping cost.
o m.
Reviewed in the United States on May 31, 2023
Great price and fast shipping.
Bounhom Luangaphay
Reviewed in the United States on November 18, 2022
Can’t find it cheaper anywhere then here with free shipping considering both equal to 100 lbs
eldenson
Reviewed in the United States on October 17, 2021
This was a good buy. The price was excellent and you can trust the Doheny's name.
Aaron
Reviewed in the United States on January 13, 2021
I am no longer afraid to bring my PH down. Liquid Acid is just no fun to deal with but this product is super easy and not scary at all. One big DE scoop generally brings PH down in my pool by .2-.4 pts.
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