Spa Sentry is the easiest way to control pH for clear, stable water.  pH is the most critical factor because it changing rapidly when bathers, products or other elements enter the water.

Controls pH for up to two full months.

Introduces a buffering compound, making pH easier to keep in balance.

Product Application:

1. Drain and clean spa surface with SpaGuard® Surface cleaner.
2. Clean filter with SpaGuar Filter cleaner and Degreaser.
3. Refill with fresh water IMPORTANT: Leave heater off before the addition of Spa Sentry
4. If Total Alkalinity is greater than 150ppm and pH is higher than 7.6, use pH Decreaser to lower pH to 7.4
5. If fill water has calcium hardness less than 150ppm, add 1 qt of Spa Sentry per 300-500 gallons. Clean filter after 24 hours. NOTE: Water may become cloudy upon addition.
6. If fill water has calcium hardness greater than 150ppm add 2 qts. of Spa Sentry per 300-500 gallons. Add the first quart, wait 24 hours, clean filter, add the 2nd quart. Clean filter again after 24 hours. NOTE: Water may become cloudy upon addition.
7. The pH should remain stable for up to 60 days. If the spa has not been drained for after 60 days add an additional quart of Spa Sentry.
8. If Spa Sentry is used in a system with Brominating Tablets, the life of Spa Sentry is severely reduced. Brominating or Chlorinating concentrate is recomended.

Calcium Hardness less than 150 ppm:

• 1 quart per 300 to 500 gallons

Calcium Hardness more than 150 ppm:

• 2 quarts per 300 to 500 gallons

Active Ingredients:

Phosphate Buffer - 36.3%
Inert Ingredients:    63.7%

Use this product to prevent pH bounce in your spa for up to 1 month.