Low calcium levels in the pool.
Calcium hardness in vinyl liner pool.
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.
Truth be known vinyl liner and fiberglass pools are likely to decline faster in a low calcium environment.
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.
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.
High calcium is rarely a problem if other lsi factors are adjusted properly 500ppm calcium hardness is easily managed without scale formation.
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.
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.
For vinyl pools calcium should be between 150 250 ppm.
Calcium hardness is also very important to the chemical balancing of your vinyl liner swimming pool.
A hardness of 10 is fine in a plastic pool.