5 kg Hardness Plus
Hardness Plus Information
Used to increase you the calcium level of your water if lower than 200ppm. A low calcium level can cause damage to your pool equipment. Ideal calcium hardness level should be between 200ppm and 300ppm for your pool or spa water.
Use 68g per 4,545 litres (1,000 gallons) to increase calcium hardness by 10ppm.
Please read instructions on the products before use.
For more information on chemicals and water treatment there are documents and downloads available in our Resources section.