Vian pH Minus 1.5kg

1.5 kg. The dose rate is 10g Vian pH Minus per 1,000 litres (220galls) of spa water. Each dose decreases the pH by approx 0.2. After 12 to 24 hours re-check pH level of the water and if it is still above 7.6 repeat the above dose. The ideal pH level is between 7.2 & 7.6. If the level is above 7.6 it should be lowered using pH reducer.