Spa Alkalinity Increaser™
Raises total alkalinity in spa/hot tub water
Natural Chemistry’s Spa Alkalinity Increaser is used to raise total alkalinity in spa water. Total alkalinity in spa water should be maintained between 80- 120ppm. As a result of the buffering effect of total alkalinity, pH, bather comfort, water balance, and clarity are more easily maintained.
Directions for use:
Read the entire label before using.
- Test spa water for total alkalinity level.
- Compare test results to chart below to determine appropriate amount of product necessary to make adjustment.
- 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 |
|---|---|---|---|---|
| 200gal | 1oz | 2oz | 4oz | 5oz |
| 400gal | 2oz | 4oz | 8oz | 10oz |
| 800gal | 4oz | 8oz | 16oz | 20oz |
NCI threaded safety cap = 1/2oz
NCI large over cap = 4 1/2oz
