Calcium Hardness Raiser 5kg
Depending on which area of the UK you live, the water balance is not just affect by pH balance. The calcium level can also affect this as well. Some very soft water areas can need calcium hardness raiser to increase this level, if it falls below 200mg/l. With low levels problems can include staining, pool surface etching and corrosion and foam.
Price only £21 plus shipping!