Simply Watercare - Total Alkalinity Plus 5KG
Internal Reference: TAPLUS5OLAdd total alkalinity to your pool or spa when the alkalinity needs to be increased. Add 2 heaped teaspoons per 1000 litres, pre-dissolve in bucket full of water before adding to pool or spa. Ensure you have your jets running before pouring into the water. Never add this product when pool or spa is being used and allow 15minutes before entering pool or spa after added product. Never mix with any other pool or spa chemicals Keep out the reach of children.
Ideal Level is between 80-150PPM