In areas of soft water it will be necessary to add alkalinity to the water. Water that is low in alkalinity is corrosive to pool pumps & heaters and alkalinity builder should be used to prevent this. Alkalinity builder will also slowly increase the pH of the spa water. Alkalinity builder can be used to increases the alkalinity level in swimming pools, spas or hot tubs.
Easy to use and with a long shelf life
1, 5 grams (1 x teaspoon) will increase the alkalinity level by 2.5ppm in a 1,000 litre spa.
2, Dissolve in 2 litres of warm water and pour into spa.
3, Turn pumps on for 5 minutes
4, Test with testing strips and repeat does if necessary.
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