5 things you have to know about German guys: 1. They are responsible. Of course Iâm generalizing in all of these points. But every generalization is partly true. They like having fun, but only when itâs appropriate. If you come from Latin lands and shout when talking, youâll scare him.
The ideal range for calcium hardness is 250-350 ppm. If the calcium hardness is too low, the water becomes corrosive and results in the etching of the pool's surfaces. Metals corrode - and this includes pool equipment, pipe fittings and pump connections. As a result, the pool's walls and floor can stain.
In most cases you need not worry if your calcium levels are below 500, but much higher than that and it can cause pool problems. Hardness can also be reduced by dilution (adding water to the pool which has a lower calcium hardness content). Levels which are too low require the addition of calcium chloride.