Calcium Hardness Booster for hot tubs corrects problems caused by insufficient levels (below 150 ppm) of dissolved calcium. Prevents corrosion of heater & equipment, etching, water foam.
- Prevents corrosion
- Reduces foaming
- 14 oz. bottle
Product notes: Fast-dissolving calcium chloride, 100%. Check with Hardness Test Strips.
With regular testing of my spa water I merely pour in the required amount of product to balance the water chemistry. The Calcium Hardness Booster helps bring the water hardness measure into balance and is very effective. #sweepstakes
Product works as expected. Brings hardness up. Also, Spa Sepot is awesome ingeneral! #sweepstakes
Just follow the directions, works as advertised.
Chemistry is chemistry but the people who serve and support are what makes SpaDepot great. Great service, great support and of course great products.
happy with all the products I got.
It did the trick
Perfect fit for our hot tub.
I use this to increase my calcium to 150-200 ppm for my ozone sanitized spa. It works very well and is easy to use. I've been using this product for the past 15 years and will continue using it because it is inexpensive and reliable.