Calcium hardness ch for vinyl pool liners no one at tfp was mixing anything up.
Calcium hardness vinyl liner pools.
High calcium is rarely a problem if other lsi factors are adjusted properly 500ppm calcium hardness is easily managed without scale formation.
If you have a concrete or plaster pool keep the level between 200 ppm and 275 ppm.
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.
It also produces itchy skin.
If your pool has a vinyl or fiberglass liner the calcium hardness level should be between 175 parts per million ppm and 225 ppm.
Ch is carbon with hydrogen attached and started the thread as an example of the mis information at some pool.
It was a guy at a pool store who got it wrong and the poster at tfp knew that tried to explain to the pool store person what a hydrocarbon was i e.
A low level can result in foaming which is unpleasant but shouldn t harm the liner.
Truth be known vinyl liner and fiberglass pools are likely to decline faster in a low calcium environment.