Hot tub chemical maintenance

Canadian Spa stock a range of hot tub chemicals & accessories

The following serves as a guideline to hot tub owners when periodically maintaining their hot tubs:


Fill spa with fresh water through the skimmer basket. Do not use water from a water softener. Before adding chemicals, it is important to find out your spa’s water capacity in litres:

  1. Add 60 ml (2 oz) of Scale Control (scale Inhibitor) per1000 litres.
  2. Once the spa has sufficient water for circulation, turn on power.
  3. Add 30 ml. (1 oz) of Spa Clear per 1000 litres.
  4. Using the test strips, balance pH to 7.2-7.6, Total alkalinity to 80-150 ppm.
  5. Add a chlorine tablet to floating dispenser or Chlorine granules directly into water


  1. The spa must be left powered up at all times!
  2. Test and maintain ideal levels of pH, Alkalinity, and Chlorine using the test strips.


  1. Add 30 ml of Scale Control (scale Inhibitor) per 1000 litre while water is circulating.
  2. Add 30 ml of Spa Clear per 1000 litres
  3. Test and maintain ideal levels of pH, Alkalinity and Chlorine using
  4. the test strip.


  1. Calcium and organic waste can build up on the filter. Use Filter Clean every month to prolong the life of the filter.
  2. If foam appears, squirt a small amount of De-foamer on the area.
  3. We recommend you drain your spa every 3 months to ensure water purity.

* Important Note: In hard water areas use two to three times the recommended amount of stain and scale inhibitor (Control).

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