Spa pH Decreaser

Decrease pH level to ideal range

Natural Chemistry's Spa pH Decreaser lowers the pH of water in spas. Spa water should be maintained between a pH of 7.2 and 7.6. When pH is too high (above 7.6), water becomes uncomfortable to bathers, sanitizers lose their efficiency, water may become cloudy and scale forms more readily.

  • Brings pH level to an ideal range


Directions for use:

Read the entire label before using.

  1. Test spa water for pH level.
  2. Compare pH test results to chart below to determine appropriate amount of product necessary to make adjustment.
  3. With the spa not in use and circulation pump operating, add required amount directly into spa water. Continue circulating water a minimum of 30 minutes.
  4. Retest, adjust if necessary.

Dosage Chart
All values are in dry weight

Spa VolumepH 7.2-7.6pH 7.6-7.8pH7.8-8.0pH 8.0-8.4Above pH 8.4
200galnot req.0.5tsp0.75tsp1.5tsp2 tsp
400galnot req.0.75tsp1.5tsp3 tsp3.5tsp
800galnot req.1.5tsp3 tsp6 tsp7 tsp

NCI threaded safety cap = 2 teaspoons or 1/2oz of this product

  Printable version

Instead of getting technical and trying to teach a science class explaining how enzymes work we will try to break it down more simply. Enzymes break non-living things down to smaller and smaller bits. Many non-living things are in pool and spa water; body oils, sweat, cosmetics and sunscreens to name a few.
SMARTZymes contain thousands of enzymes with the potential to break down thousands of different non-living waste products in your water.

Natural Chemistry pioneered the use of phosphate removal technology long before it was popular. High phosphate levels in pool water can create many water issues. Most people today are aware of the efforts by government agencies to limit the use of phosphates in common household products due to their effect on water. Natural Chemistry has a variety of phosphate removal products that have been proven to make water care easier.

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Material Safety Data Sheets

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