Hardness Increaser 2 x 5kg

Hardness Increaser 2 x 5kg

PRICE (excluding VAT) QTY
Each £15.75 QTY 5+£14.25

Safety Information

Exclaimation mark
H319 Causes serious eye irritation.
P264 Wash hands thoroughly after handling
P280 Wear protective gloves/ protective clothing/ eye protection/ face protection.
P305 + P351 + P338 IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.
P337 + P313 If eye irritation persists: Get medical advice/ attention.

Calcium chloride. Size: 2 x 5kg

Water balancer and calcium builder. For use where an increase in water hardness is required.


To increase Calcium Hardness by approximately 10 ppm, add 1.5kg EasyChemicals Hardness Increaser per 100 cubic metres of pool water (24 ounces per 10,000 gallons).


Test the pool water to determine the existing Total Hardness level and calculate the amount of EasyChemicals Hardness Increaser required to achieve the recommended level of 150 to 200 ppm. Do not attempt to achieve the recommended level in one treatment - instead add EasyChemicals Hardness Increaser at the dose rate noted above until the desired level is reached. Add the required amount of EasyChemicals Hardness Increaser into 10 litres of water, using a clean plastic container and mix carefully. Slowly pour the solution into the pool water close to the return inlets and rinse out container thoroughly after use. After 24 hours re-check the Total Hardness and repeat the treatment dose as necessary.