Support · 16 answers
Pool Chemicals.
Water balance basics: alkalinity, pH, calcium, clarifiers and conditioners.
Water Balancers / Alkalinity
Alkalinity (5)
- What is pool alkalinity, what is the ideal range, and why is it important?Pool alkalinity measures your water’s ability to resist sudden pH changes. It acts as a buffer that helps keep pool water balanced and stable. Most residential pools…
- What happens if pool alkalinity is too low or too high?Low alkalinity can cause: Rapid pH swings Corrosive water Surface and equipment damage Eye and skin irritation High alkalinity may lead to: Cloudy water Scale buildup…
- What is pool alkalinity increaser, and when should I use it?Pool alkalinity increaser is a chemical designed to raise low alkalinity levels. Most products use sodium bicarbonate (baking soda) as the active ingredient. You may…
- How do I add alkalinity increaser, how much should I use, and how long should I wait to swim?Test your pool water Follow the product dosage instructions Spread the product evenly over the deepest part of the pool Run the pump for at least 4 hours Retest the…
- How often should I test pool alkalinity, and should I adjust alkalinity or pH first?Test alkalinity at least once per week during swim season or anytime water chemistry changes significantly. Always adjust total alkalinity before making major pH…
Water Balancers / Calcium
Calcium (5)
- How do I know if my pool needs calcium hardness increaser, and when should I add it?Use a pool water test kit regularly to check calcium hardness levels. Add calcium hardness increaser when: Calcium levels test below 200 ppm After draining and refilling…
- What should I do before adding calcium hardness increaser, and how often should I test calcium hardness?Before adding: Test your pool water Confirm calcium levels are low Ensure pH and alkalinity are balanced Follow product dosage instructions carefully. Test your pool…
- What is calcium hardness increaser and what are the ideal levels for pools and spas?Calcium hardness increaser raises the calcium level in your pool water to help keep the water balanced and protect your pool surfaces and equipment. Proper calcium…
- When should I not add calcium hardness increaser, and what happens if calcium levels are too high or low?Do not add calcium increaser if: Calcium levels are above 400 ppm Your pool already has scale buildup pH or alkalinity levels are unbalanced Low calcium can cause…
- Do pools and spas use the same calcium hardness increaser?Swimming pools and spas use the exact same chemical to increase calcium hardness. Whether a bottle is labeled for a pool or a spa, the active ingredient is always…
Water Balancers / Clarifiers & Conditioners
Clarifiers & Conditioners (2)
- When should I use a clarifier?Use a clarifier when: Water looks cloudy after balancing the sanitizer and pH. Fine particles are making the water look dull. Heavy spa use temporarily overwhelms…
- Why do I need a conditioner and clarifier for my pool or spa?Each product has a different job: Cleaner: Removes oils, grime, and buildup from spa surfaces and plumbing. Conditioner: Helps reduce foam, scum, and metal-related water…
Water Balancers / pH
pH (4)
- How do I test my pool water and use pH Plus if the pH is too low?To test the pH level of your pool water: Use a reliable pool test kit, such as test strips or liquid reagents. Collect a sample of water from elbow depth. Follow the…
- What is pH Plus?pH Plus is a chemical solution designed to increase the pH level of pool or spa water when it falls below the recommended range(between 7.2-7.6). Typically containing…
- Why is proper pH balance important, and how often should I test my pool water?Test your pool water using a reliable test kit. If the pH is below 7.2, calculate the required amount of pH Plus based on pool size. Add the pH Plus evenly across the…
- Can pH Plus be used the same way in pools and spas?While both pools and spas use pH Up to increase pH levels, the application differs: Pools: Larger water volume requires careful dosing and longer circulation (2-4…
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