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.
Alkalinity should be tested on a weekly basis. Donât worry if your hardness is under 500 ppm. Anything significantly higher than this can cause scaling and cloudy water, or calcium crystals that deposit as small clumps. Low levels (<150 ppm) are also bad, and can corrode pool surfaces; pulling out calcium.