That is to say in calcium deficient water a plaster surface gives up necessary surface calcium to attain equilibrium with the water causing premature surface failure.
Is water hardness important in a vinyl pool.
Calcium for a liner pool can be a bit lower than a plaster pool in the range of 150 250 ppm.
When water is too hard white scale forms.
To keep pool water balanced calcium hardness is one of the most important levels to maintain.
Both surfaces are impacted identically to a plaster pool with one exception.
Although soft water is desirable in everyday home use calcium hardness is necessary in pool water.
Neither vinyl nor fiberglass has available calcium to donate to the water like a plaster pool.
I explain calcium hardness in more detail in our swimming pool glossary.
Test the water frequently.
Adding calcium increaser or replacing some pool water with softer water are the corrective actions for these two situations respectively.
Calcium hardness is also very important to the chemical balancing of your vinyl liner swimming pool.
Free chlorine should be in the 1 0 2 0 range.
When maintained at proper levels pool water resists a change in ph.
Hardness at any level is only an issue in a plastic pool pvc pipes vinyl liner polymer pump if it s high.
Hardness on the other hand is a measure of the calcium and magnesium in the water.
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.
A hardness of 10 is fine in a plastic pool.
If calcium hardness goes above 400 ppm you will likely see a white flaky crust on the liner and pool equipment.
Keeping a close eye on your pool chemistry will help you prevent problems related to calcium hardness and a lot of other things as well.
Keep your pool clean.
In general the whole saturation index thing the pool industry has wasted so much paper on doesn t apply to most pools.
Calcium hardness is the measure of how hard or soft your pool water is and measures how much calcium is dissolved in your pool water.