Calcium Hardness In Vinyl Swimming Pools

If a vinyl liner s calcium level is too low this soft water situation could lead to foaming and other water problems and can harm the vinyl.

Calcium hardness in vinyl swimming pools.

What is calcium hardness. Here s your favorite answer. But what it depends on isn t that difficult. In addition to phand total alkalinity calcium hardness must be kept in balance so that your pool water does not become too corrosiveor end up scalingthe surface of your pool.

These are symptoms of swimming pool water that is unbalanced. Fortunately calcium hardness changes rather slowly so a once a month testing and adjustment should be all you need. Calcium for a liner pool can be a bit lower than a plaster pool in the range of 150 250 ppm. Low calcium levels in a plaster pool will cause the water to draw calcium directly from the plaster causing it to pit become rough and eventually crumble.

The recommended range is 150 400 ppm parts per million with an often cited stricter range of 200 400 ppm. High calcium is rarely a problem if other lsi factors are adjusted properly 500ppm calcium hardness is easily managed without scale formation. Although soft water is desirable in everyday home use calcium hardness is necessary in pool water. Excessive calcium in a pool is typically the result of an imbalance in your pool water and it can result in white scaly buildup.

If your pool has a vinyl or fiberglass liner the calcium hardness level should be between 175 parts per million ppm and 225 ppm. Calcium is always present in your pool. The ideal reading for calcium hardness in pool water is about 200 to 400 parts per million. For vinyl pools calcium should be between 150 250 ppm.

A low level can result in foaming which is unpleasant but shouldn t harm the liner. If you have a concrete or plaster pool keep the level between 200 ppm and 275 ppm. Truth be known vinyl liner and fiberglass pools are likely to decline faster in a low calcium environment. If you re faced with a re plastering job on your pool you ll realize.

Calcium hardness is also very important to the chemical balancing of your vinyl liner swimming pool. If calcium hardness goes above 400 ppm you will likely see a white flaky crust on the liner and pool equipment. Hardness is the measure of how much calcium or calcium carbonate is present in your swimming pool water.