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Spa Calcium Hardness Increaser

Spa Calcium Hardness Increaser

Spa Chem

£11.12

Raise the calcium hardness levels in Spa, Pool and Hot Tub water. The correct reading is a minimum of 250PPM (mg/l) Dose at a rate of 10g of Calcium Hardness Increaser to 1,000 litres (220 gallons) of water. This product should be used to raise the calcium hardness levels in Spa and Hot Tub water. If there is insufficient levels of calcium in the water it may be difficult to balance the water and grout loss within tiled spas may occur. Instructions 1. Take a CALCIUM HARDNESS reading with a quality test kit. The correct reading is a minimum of 250PPM (mg/l) 2. Dose at a rate of 10g of Calcium H

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The part other shops don't tell you. Three separate questions, kept separate on purpose, each with its source.