Calcium Hardness In Vinyl Pool

A hardness of 10 is fine in a plastic pool.

Calcium hardness in vinyl pool.

Low calcium levels in the pool. Calcium for a liner pool can be a bit lower than a plaster pool in the range of 150 250 ppm. 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. Hardness at any level is only an issue in a plastic pool pvc pipes vinyl liner polymer pump if it s high.

If calcium hardness goes above 400 ppm you will likely see a white flaky crust on the liner and pool equipment. Fortunately calcium hardness changes rather slowly so a once a month testing and adjustment should be all you need. 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. If you have a concrete or plaster pool keep the level between 200 ppm and 275 ppm.

Here s why it happens. 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. Dip the test strip dip the calcium hardness test strip into the pool water.

Calcium hardness is also very important to the chemical balancing of your vinyl liner swimming pool. It also produces itchy skin. In general the whole saturation index thing the pool industry has wasted so much paper on doesn t apply to most pools.