How to lower hardness in a pool.
Will calcium hardness cause stains on vinyl pool.
It would scratch the pool.
An edited version of this article originally appeared in the summer 2007 issue of the edge a publication of the northeast spa pool association.
After defining the cause of pool scale and ways to prevent scale problems in pools we will cover how to remove scale from vinyl fiberglass and concrete pools.
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.
If you re dealing with too much calcium in a pool you can try adding a sequestering agent which is a chemical treatment that fights the effects of high metal and calcium content in swimming pool water as an added bonus it also fights stains.
A calcium scaling specific additive may remove the deposits but these products can take months to dissolve calcium silicate.
Calcium for a liner pool can be a bit lower than a plaster pool in the range of 150 250 ppm.
Problems with pool water hardness.
If your pool has a vinyl or fiberglass liner the calcium hardness level should be between 175 parts per million ppm and 225 ppm.
In many parts of the country tap water with hardness levels of 400 800 ppm is not uncommon.
Low calcium levels in the pool.
These stains are notoriously difficult to scrub free.
Calcium can appear in the form of a thin calcium film that covers dirt or metal stains on the pool interior.
Calcium hardness is also very important to the chemical balancing of your vinyl liner swimming pool.
If you have a vinyl or fiberglass pool you won t be able to use a pumice stone.
Calcium on the low and high end of the scales will eventually cause problems and when they do be ready for some serious problems.
3 brown cloudy stains are often caused by calcium carbonate capturing either dirt metals or copper as it forms its crystalline lattice structure.