TRÉVINERGY CALCIUM
Calcium Hardness controls overall buffering capacity of the water.
Low CH can lead to corrosion; high CH to scaling, cloudy water and
staining. Maintain CH between 150-300 ppm. 10 level tablespoons of
Spa Life Cal will raise CH 50 ppm in 2000 litres of water. To lower
CH, drain part of the old water, refill with fresh tap water, then
retest.