Calcium Hardness Vinyl Pool

Low calcium levels in the pool.

Calcium hardness vinyl pool.

These are symptoms of swimming pool water that is unbalanced. In addition to ph and total alkalinity calcium hardness must be kept in balance so that your pool water does not become too corrosive or end up scaling the surface of your pool. Calcium on the low and high end of the scales will eventually cause problems and when they do be ready for some serious problems. You ideally want to keep the calcium hardness level balanced as too low or too high can cause problems for you pool.

Fortunately calcium hardness changes rather slowly so a once a month testing and adjustment should be all you need. If calcium hardness goes above 400 ppm you will likely see a white flaky crust on the liner and pool equipment. When people see calcium scale or plaster problems that are white in color they immediately assume it s calcium s fault. Calcium hardness is also very important to the chemical balancing of your vinyl liner swimming pool.

Calcium hardness has a bad reputation and that reputation is undeserved. For vinyl pools calcium should be between 150 250 ppm. Keeping your calcium hardness in the midpoint. If you have a concrete or plaster pool keep the level between 200 ppm and 275 ppm.

If you keep your calcium hardness in the midpoint between those two limits about 275ppm then you should be fine. If your pool has a vinyl or fiberglass liner the calcium hardness level should be between 175 parts per million ppm and 225 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. The ideal range for calcium hardness in swimming pools is 150 400 ppm parts per million.

Calcium for a liner pool can be a bit lower than a plaster pool in the range of 150 250 ppm. The recommended range is 150 400 ppm parts per million with an often cited stricter range of 200 400 ppm. One can assume in the course of a week the ph in a plaster pool will rise and in vinyl or fiberglass pools the ph will drop in most cases. 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.