Calcium Hardness Vinyl Liner Pools

Low calcium levels in the pool.

Calcium hardness vinyl liner pools.

Calcium hardness ch for vinyl pool liners. 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. Hardness at any level is only an issue in a plastic pool pvc pipes vinyl liner polymer pump if it s high.

It also produces itchy skin. High calcium is rarely a problem if other lsi factors are adjusted properly 500ppm calcium hardness is easily managed without scale formation. I think that in practice it s not an issue given no problems actually seen with many pool owners having low ch water and vinyl pools but i had always assumed there was no calcium carbonate in such vinyl liners and that apparently. Here s why it happens.

There is this discussion over at trouble free pool that has uncovered the apparent fact that granulated calcium carbonate is the common filler in vinyl pool liners. Calcium hardness is also very important to the chemical balancing of your vinyl liner swimming 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 pool. A hardness of 10 is fine in a plastic pool.

In general the whole saturation index thing the pool industry has wasted so much paper on doesn t apply to most pools. For vinyl pools calcium should be between 150 250 ppm. I thought i d bring that discussion over here as well. If you have a concrete or plaster pool keep the level between 200 ppm and 275 ppm.

If calcium hardness goes above 400 ppm you will likely see a white flaky crust on the liner and pool equipment. Calcium for a liner pool can be a bit lower than a plaster pool in the range of 150 250 ppm. Calcium on the low and high end of the scales will eventually cause problems and when they do be ready for some serious problems.