In The Swim Alkalinity Increaser, 2 lbs. makes your pH and chlorine levels easier to control and balance for safe, healthy pool water.

The active ingredient in our Alkalinity Increaser is Sodium Bicarbonate.
Use when total alkalinity drops below 80 ppm.
Keeps your pH and Chlorine from becoming unstable
Granular form, easier to apply into your water!
Dosage: 1-1/2 pounds per 10,000 gallons will raise the alkalinity level approximately 10 ppm.
Spa Dosage: 1-2 oz. per 500 gallons.
Retest water after every dosage added, You can swim after 4 hours of circulation
2 lb Bottle!

In The Swim’s Spa Alkalinity Increaser 2 lb Bottle will help you raise your Total Alkalinity while keeping your pH levels the same. Made of sodium bicarbonate in granular form in our bags and buckets make for easy storage and usage. When alkalinity is too high, your pool water is equally unsafe and scales will begin to form on your pool and pool equipment. Granular alkalinity increaser can help by stabilizing the pool pH and ensuring that your pool is safe for swimming. More importantly, maintaining a balanced pH by effectively administering an alkalinity increaser also ensures that your pool water is refreshing and enjoyable on even the hottest summer day.

Managing Total Alkalinity

The vast majority of alkalinity increasers are made from sodium bicarbonate which is a safe substance to store and use. Depending on the size of your pool you will need to carefully measure your alkalinity increaser in order to accurately and effectively increase pool alkalinity. Total Alkalinity measures all the hydroxides, carbonates and alkaline that is in your pool’s water. Your Total Alkalinity or (TA) levels should be 80-120 ppm. Total Alkalinity strongly influences your pH level, so if your pH is off, be sure to check the alkalinity. Total Alkalinity strongly influences your pH levels, so if you notice the pH is off, be sure to check the alkalinity. When your alkalinity level drops below 80ppm, pH will begin to fluctuate dangerously causing water to become acidic and corrosive.

To prevent low pH problems from occurring, keep an eye on the pH level of your pool and, whenever it drops below 7.2, simply add a pH increaser to raise the pH level into the 7.4-7.6 range. In that case try In The Swim pH Increaser which will raise both your pH and Total Alkalinity.