Pool Mate Calcium Hardness Increaser for Swimming Pool, Spa, and Hot Tub
Prevent corrosion and surface damage with Pool Mate Calcium Hardness Increaser, designed to raise calcium levels and protect your pool or spa.
✅ Prevents staining & equipment corrosion
✅ Ideal for plaster, vinyl & fiberglass pools
✅ Easy-to-use formula – just mix and pour
✅ Recommended CH range: 200–400 ppm
✅ Perfect for pools with soft or low-mineral water
Use regularly to maintain proper calcium hardness and extend the life of your pool surfaces and equipment.
Description
Brand: Pool Mate
Features:
Pool Mate Calcium Increaser increases water hardness in pools and hot tubs to prevent low calcium hardness problems, including corrosion of equipment, pool staining, and destruction of pool and spa surfaces made of concrete or plaster.
Always measure calcium hardness(CH) level before adding Calcium Hardness Increaser because the only way to lower calcium hardness in your pool or hot tub is by draining and refilling part/whole of your water.
The ideal range is 200 – 400ppm for tiles and plaster pools, 200-300ppm for Vinyl Pools, and 250-400ppm for Fiberglass pools and should all be within the range always.
To use Pool Mate Calcium Increaser effectively, mix the right amount with pool or spa water in a bucket and pour slowly around your pool or hot tub while water is circulating.
Measurement: For a 5000 gallon pool or spa, add 7.2 oz to increase the Calcium Hardness level by 10ppm