- pH ideal range 7.2 – 7.8 (7.6 being the optimum), test pH on a weekly basis.
- Alkalinity ideal range 80 – 120 ppm, test Alkalinity on a monthly basis.
- Calcium hardness 150 – 400 ppm, test yearly.
- Phosphates – level should be less than 100 ppb
ADJUSTING WATER CHEMISTRY
- Follow the label instructions based on your tub size
- We recommend Leisure Time, Bio lab, and Blue Wave products.
- See us, we have Leisure Time products
- If pH is low (below 7.2) raise by using a base baking soda or soda ash product
- If pH is high (above 7.8) lower by using a muriatic acid or sodium bisulfate product
- If Alkalinity is low (below 80) add baking soda product
- If Alkalinity is high (above 120) add sodium bisulfate product
ADJUSTING CALCIUM HARDNESS:
- If calcium is low (below 150) add a calcium chloride product
- If calcium is high (above 400) partially drain the tub and refill with fresh water
ADJUSTING TDS- Total Dissolved Solids:
- Total Dissolved Solids are a combination of metals, minerals, and other organic materials in your water.
- If your spa has been filled with well water or with water from a non-municipal source, additional chemicals to remove metals and or chemical contaminants may need to be added to your water. TDS can be tested with a meter, test strip, or by taking a water sample to your local spa and pool dealer.
Phosphates are contaminants that come from products such as fertilizer, soap, shampoo, lotion, and perfume. Phosphates can be tested with a strip or by taking a water sample to your local spa and pool dealer.
***Some spa chemicals such as spa filter cleaners and salt water softeners contain Phosphates and should not be used.***