It also produces itchy skin.
Calcium hardness in vinyl pool.
A low level can result in foaming which is unpleasant but shouldn t harm the liner.
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 the pool.
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.
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.
For vinyl pools calcium should be between 150 250 ppm.
If you have a concrete or plaster pool keep the level between 200 ppm and 275 ppm.
Dip the test strip dip the calcium hardness test strip into the pool water.
A hardness of 10 is fine in a plastic pool.
If calcium hardness goes above 400 ppm you will likely see a white flaky crust on the liner and pool equipment.
If your pool has a vinyl or fiberglass liner the calcium hardness level should be between 175 parts per million ppm and 225 ppm.
Hardness at any level is only an issue in a plastic pool pvc pipes vinyl liner polymer pump if it s high.
Calcium on the low and high end of the scales will eventually cause problems and when they do be ready for some serious problems.
Fortunately calcium hardness changes rather slowly so a once a month testing and adjustment should be all you need.
In general the whole saturation index thing the pool industry has wasted so much paper on doesn t apply to most pools.