HTH Pool Care Calcium Hardness Up, Swimming Pool Chemical Protects Swimming Pool Surfaces and Liners, 4 Lbs

Balance With HTH Calcium Hardness Up

Raises Calcium Hardness of Pool Water

HTH Calcium Hardness Up works by raising the calcium hardness of pool water.

Keeps Swimmers Comfortable

Keeping your pool balanced is key to ensuring a comfortable swim for all. In addition to maintaining pH levels between 7.2 and 7.8, make sure the water has enough calcium; 200-500 ppm is the ideal range.

Protects Pool Surfaces From Corrosion

Balanced pool water also helps protect your pool equipment and surfaces from corrosion, stains or other damage.

How to Use HTH Calcium Hardness Up

1. Test pH Levels and Hardness

Use HTH Multi-Purpose 6-Way Test

Strips to test the pH level and total

hardness. The ideal pH range is between

7.2 and 7.8.

2. Determine Correct Dosage

Use the label instructions on the back of the pack to determine the necessary dosage depending on pool volume (gallons) and calcium hardness level from step 1.

3. Apply Directly to Water

With the pump running, add granules directly to pool water by throwing into the deep end of the pool. Use a pool brush to disperse any undissolved chemicals.

Frequently Asked Questions

How often you should test and balance your pool can vary based on how often you use it and a number of other variables, but it’s important to remember that for chlorine and pH, you should usually test your pool two to three times a week. That may sound like a lot, but water balance is vital for your pool’s health and the health of the people who swim in it. When your pool is out of balance, your sanitizers can be less effective, and the water can cause irritation to the skin and eyes. If the water gets imbalanced enough, it can even damage the pool’s surfaces, structure or equipment.

In ideal circumstances, shocking your pool just once a week will keep it looking clean and clear, but any heavy rainfall, signs of algae, heavy use, or periods of very sunny weather can deplete free chlorine levels, which means an extra dose of HTH Pool Shock is needed. Sundown is the optimum time to shock your pool because the chlorine can work without fighting the sun's ultraviolet rays and has more time to restore water clarity.

With HTH Textstrips, it’s easy to know exactly what you need to keep your pool water balanced and sparkling. Simply test the water using HTH Multi-Purpose 6-Way Test Strips and text the results to HTH123. We’ll text you back with the right products and instructions to achieve a crystal clear pool. Our mission is to simplify water testing by providing accurate and convenient water analysis treatment recommendations in the palm of your hand. So, spend more time splashing and less time guessing. Try HTH Textstrips this season.