December 31, 2007
Calcium hardness and your pool
Calcium hardness is a measure of the dissolved calcium in water. Pool water with low calcium will take it from the pool surface or equipment, causing corrosion.The idea level is between 175ppm and 225ppm for fibreglass, vinyl or painted pools, and 200ppm- 250ppm for concrete pools.
If this seems too tricky, why not employ a pool maintenance professional to tend to your pools and spas on a regular basis?