Directions for use:
Read the entire label before using.
1. Test spa water for total alkalinity level.
2. Compare test results to chart below to determine appropriate amount of Natural Chemistry Spa Alkalinity Increaser necessary to make adjustment.
3. With spa circulating pump on high speed, add required amount directly into spa water. Continue circulating water a minimum of 20 minutes.
Dosage Chart (All values are in dry ounces)
Spa Volume |
20ppm |
40ppm |
80ppm |
100ppm |
200 gal |
1 oz. |
2 oz. |
4 oz. |
5 oz. |
400 gal |
2 oz. |
4 oz. |
8 oz. |
10 oz. |
800 gal |
4 oz. |
8 oz. |
16 oz. |
20 oz. |
NCI threaded safety cap = 1/2oz
NCI large over cap = 4 1/2oz