Blue Horizons Aqua Sparkle Flocculant Tablets contain Aluminium Sulphate

Flocculants are substances which improve the efficiency of your sand filter. Clarity problems may occur when un-dissolved solids are present in your swimming pool water, either due to heavy use, chemical imbalances, or after algae destruction.  Aqua Sparkle Flocculant Tablets will assist your sand filter to remove small suspended solids that otherwise may prove difficult to remove.  Dose via a clean and empty skimmer basket or pump strainer basket, ensuring that the filtration system remains ‘on’ for 24 hours. 
Dose rate of 1 tablet per 40,900 litres (9000 gallons).  Aqua Sparkle Flocculant Tablets should only be used in conjunction with sand filters.

This is a 500g Tub (10x50g).

CHIP information can be found located under Product main picture, Click to enlarge.