Hello Guest

Our Northfleet depot is now open for collections.

Social distancing and safety measures are in place. Please check your receipt email for further details.

Read our Covid-19 message

Purisan™ Calcium Hardness Increaser (Calcium Chloride)

If the calcium hardness of your pool water is below the minimum level required (normally 100 ppm) enter the amount you want to increase it by (in parts per million) and the pool water volume in the relevant boxes below and click calculate to see how much CH Increaser to dose.

Required CH Increase: ppm

Pool Volume: Litres

This site uses cookies. By continuing to browse this site you are agreeing to our use of cookies. Find out more here.
x