SPAGUARD pH DECREASER lowers the pH of water in spas and hot tubs. The pH should be maintained at 7.2 to 7.6 (as measured by an accurate test method). SpaGuard pH Decreaser is a dry granular product which is safer and easier to use than liquid acids.

Measurement and Dosing:

Use all level measurements.

1 level capful=2 teaspoons=0.5 ounce of this product. 

Note: Container cap provides convenient measure.

Directions for use:

1. Use an accurate test method to determine pH.
2. Determine the amount of SpaGuard pH Decreaser needed to adjust the pH to maintain a reading of 7.2 to 7.6.
3. Be sure the spas total alkalinity reading is at least 125 ppm before adding this product.
4. With the pump operating, sprinkle this product into the water when the spa is not occupied.
5. Let the pump circulate for 30 minutes to thoroughly mix the product.
6. In units with aerators, the pump should be operating and the aerator off prior to application of the product.
7. Retest pH and adjust as necessary. Be sure to consult chart for correct quantity to add based on the current pH of the spa

NOTE: additional product may be required based on system and other water balance parameters. Check pH and reapply if necessary. It is a good maintenance habit to test for acid/alkali demand periodically.

USAGE NOTE: do not add near metal fillings or allow pH to drop below 7.2. Do not allow undissolved product to remain on the spa surface. Break lumps by brushing or other means of agitation.