Your Swimming Pool or Spa water needs to have a Calcium Hardness level of between 200ppm and 450ppm. Water with lower Calcium level (soft water) is likely to Damage your Swimming Pool or Spa Equipment. The best way of checking your water is to take it into a dealer or purchase a test kit to check your hardness is not below 200ppm.
When using this chemical please ensure you use a clean plastic bucket to dissolve the Hardness Plus in before added to your Swimming Pool or Hot Tub water (Please remember always add chemicals to water). Once fully disolved add the product over your Swimming Pool or Hot Tub return making sure your circulation system is on. Check your water over the next few days to see if you have it at the desired temperture you require.
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