Calcium Hardness In Vinyl Pool

Dip the test strip dip the calcium hardness test strip into the pool water.

Calcium hardness in vinyl pool.

For vinyl pools calcium should be between 150 250 ppm. If your pool has a vinyl or fiberglass liner the calcium hardness level should be between 175 parts per million ppm and 225 ppm. Here s why it happens. Calcium hardness is also very important to the chemical balancing of your vinyl liner swimming pool.

It also produces itchy skin. 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. A low level can result in foaming which is unpleasant but shouldn t harm the liner. The ideal reading for calcium hardness in pool water is about 200 to 400 parts per million.

Low calcium as is often the case will cause long term serious damage especially to plaster vinyl liners grout in between tiles metal rails and even concrete decking around the pool. Fortunately calcium hardness changes rather slowly so a once a month testing and adjustment should be all you need. If you have a concrete or plaster pool keep the level between 200 ppm and 275 ppm. If calcium hardness goes above 400 ppm you will likely see a white flaky crust on the liner and pool equipment.

In general the whole saturation index thing the pool industry has wasted so much paper on doesn t apply to most pools. Calcium on the low and high end of the scales will eventually cause problems and when they do be ready for some serious problems. A hardness of 10 is fine in a plastic pool.