HTH Pool Care Calcium Hardness up for Swimming Pools, Granules, 4 lbs

from Achan

[This review was collected as part of a promotion.] I just received this bag of calcium hardness made by HTH. The product is very good and dissolved easily in the pool. Without the right hardness levels the water will be very corrosive causing damage to the stairs, and other equipment.

from LindseyD77

[This review was collected as part of a promotion.] I am enjoying using HTH Pool Care Calcium Up, which raises calcium hardness, and is a swimming pool chemical that protects swimming pool surfaces and liners, and it helps prevent corrosion of pool surfaces. It is compatible with chlorine, salt w...

from meda48

[This review was collected as part of a promotion.] I am so very happy with the way that this product worked in my swimming pool. The directions are easy to follow on how to use it. I noticed a tremendous difference after the first application. I will definitely use this as a part of my pool c...

from Angie

[This review was collected as part of a promotion.] I am extremely satisfied!!This has been a life saver we have had so many issues with calcium build up ,and this is easy to use and works like a charm.I will be purchasing more!I have shared with a friend and they got it to and same results

from JenUNC

[This review was collected as part of a promotion.] When properly maintaining your pool, HTH calcium up is a must have. It works to protect the pool's liner, and prevents corrosion by raising calcium hardness of the water. If levels are too low then surfaces and equipment may become stained or ...