Calcium hardness ch for vinyl pool liners no one at tfp was mixing anything up.
Calcium hardness vinyl liner pools.
For vinyl pools calcium should be between 150 250 ppm.
If calcium hardness goes above 400 ppm you will likely see a white flaky crust on the liner and pool equipment.
If you have a concrete or plaster pool keep the level between 200 ppm and 275 ppm.
High calcium is rarely a problem if other lsi factors are adjusted properly 500ppm calcium hardness is easily managed without scale formation.
A low level can result in foaming which is unpleasant but shouldn t harm the liner.
Ch is carbon with hydrogen attached and started the thread as an example of the mis information at some 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.
Truth be known vinyl liner and fiberglass pools are likely to decline faster in a low calcium environment.
Calcium for a liner pool can be a bit lower than a plaster pool in the range of 150 250 ppm.