No one's told you WHY you don't need calcium, which, of course, you don't.

Calcium Carbonate is a key ingredient in concrete, mortar and plaster...all used in hard-sided pools. But not in vinyl pools. Water will leach the calcium carbonate out of the walls of the pool. The way to prevent this is to put enough calcium in the water to offset the leaching action (If you try to add sugar to unsweetened iced tea, it dissolves instantly, but far slower, if at all in heavily sweetened tea). This is the SOLE reason for adding calcium to a pool. It has NO effect on algae.

You don't have to worry about Calcium Carbonate leaching because you have a vinyl pool.

Since you are here, take a look at our sister site, Poolsolutions.com, more for the general care items than for calcium per se. Hopefully you'll find it very enlightening and money saving.


Carl