Assessments - 4, GPA: 3.8
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Low TA can be corrected by adding Cal Spas “pH-Alkalinity Up”. If the TA is too high, the pH level will tend to be too high and may be difficult to bring down. High TA can be corrected by adding Cal Spas “pH-Alkalinity Down”. When the TA is balanced, it normally remains stable, although adding water with high or low alkalinity will raise or lower the TA level. Balancing the Calcium Hardness Calcium hardness (CH) is a measure of the total amount of dissolved calcium in the water. Calcium helps control the corrosive nature of the spa’s water and is why soft water is not recommended. The low calcium content of soft water is very corrosive to the equipment and can cause staining of the spa shell. The recommended calcium hardness is 150 - 200 ppm. If the CH is too low, add Cal Spas “Liquid Hardness Increaser”. If the CH is too high, dilute the spa water with soft water or, if this is not available, add Cal Spas “Stain and Scale Defense”. When the CH is balanced, it normally remains stable, although adding soft water or very hard water will raise or lower the CH level. Balancing the pH The pH level is the measure of the balance between acidity and alkalinity. If the pH is too low, it can cause corrosion of metal fixtures and the heating element. Low pH can be corrected by adding pH-Alkalinity Up. If the pH is too high, it can cause scaling by allowing metals or minerals to form deposits and stain spa surfaces. High pH can be corrected by adding pH- Alkalinity Down. 8.28.07.87.67.47.27.06.86.6Too alkaline, causes scalingIdeal balanceToo acidic, causes corrosionNeed to lower the pH levelNeed to raise the pH level Testing For: Ideal Range (ppm) Chemicals To Use: Minimum Maximum To Raise To Lower Total Alkalinity 80 120 pH-Alkalinity Up pH-Alkaliity Down Calcium Hardness 150 200 Liquid Hardness Increaser Stain and Scale Defense pH 7.4 7.6 pH-Alkalinity Up pH-Alkaliity Down Sanitation After you fill your spa, you need to decide which chemical sanitizer you wish to use. Consult your Cal Spas dealer for the right decision with regards to your lifestyle and spa usage. We recommend either bromine or chlorine as your sanitizer. Both work well when maintained regularly. DO NOT use trichlor. Trichlor is very acidic and the hot temperature of the spa causes it to dissolve too quickly. It will cause damage to your spa and will void your warranty. Sanitizers kill bacteria and other organic waste by breaking them down to non-harmful levels and are filtered out. Make sure you follow all instructions and use only Cal Spas brand chemicals. Whichever plan you decide on, follow it completely and don’t take shortcuts. It will provide you with clean, safe, clear spa water with a minimum of effort. Spa owners with the ozonator still need to use a chemical sanitizer. See page 13 for instructions. Using Chlorine as a Sanitizer If you choose to use chlorine as a sanitizer, only use granulated chlorine, not liquid chlorine. We recommend you use only Cal Spas “Chlorinating Granules”. Once a week, check the chlorine level using either a test strip or a reagent kit. See the table on the following page for the ideal range. Add one or two tablespoons of Cal Spas “Chlorinating Granules” to the spa water weekly. Note that chlorine dissipation rate will be faster at higher water temperatures and slower at lower temperatures. When you add chlorine, open all of the jets and run the spa at high speed with the cover open for at least 30 minutes. Follow the maintenance schedule on page page 16. Using Bromine as a Sanitizer Bromine is a very effective sanitizer that produces low chemical odors. Unlike chlorine, it can break down bacteria and other impurities to a safe level with a low burn-out rate. Bromine is available in both granulated and tablet form. Use granulated bromine to establish your bromine base. Use tablets to maintain it. The filter cartridge provided with your spa has an internal chamber for bromine tablets. Do not use a floater. When you begin with fresh water, add 2 ounces of Cal Spas Go Brom. Open all of the jets and run the spa at high speed. This is your base bromine level as the tablets will take a while to dissolve. Add two ounces of Oxidizer Shock. Open all of the jets and run on high speed with the cover half open for at least 30 minutes. Follow the maintenance schedule on page page 16. Testing For: Ideal Range (ppm) Chemicals To Use: Minimum Maximum To Raise To Lower Chlorine level Without ozonator With ozonator 3.0 5.0 2.0 4.0 Chlorinating Granules Bromine level Without ozonator With ozonator 6.7 11.0 5.7 10.0 Go Brom Shocking the Water In addition to using a chemical sanitizer, you will periodically need to shock the water. Shocking the water helps remove burned-out chemicals, bacteria, and other organic material from your spa’s water and improves your sanitizer’s effectiveness. Do not use chlorinating shock, which will damage your spa’s jets and pump seals. The only shock you should use is Cal Spas Oxidizer Shock. It is an ea...