After selecting the right SDIC or TCCA pool sanitizer, proper application is key to ensuring disinfection efficacy, extending equipment life, and protecting swimmer safety. Many pool operators experience ineffective disinfection, equipment damage, or swimmer discomfort due to improper handling. This article details the correct application methods for SDIC and TCCA, breaks down common misconceptions, and helps you standardize operations, avoid risks, and easily maintain pool water quality.
Before use, test the pool water quality, focusing on pH value (optimal range: 7.2–7.8) and free available chlorine (FAC) (daily maintenance: 0.3–1.0 mg/L; shock treatment: 0.5–1.0 mg/L). At the same time, remove sediment, fallen leaves, and other debris from the pool bottom, and clean the filter to prevent organic contaminants from consuming chlorine and reducing disinfection efficiency.
Dosage Guide (1 ton of water = 1 m³):
· Daily maintenance: 10–15 g per ton of water to maintain compliant residual chlorine levels.
· Emergency disinfection (cloudy water, odor, post rainfall): 20–30 g per ton of water. At 20 ppm, the bactericidal rate reaches 99%.
Application Steps:Pour SDIC powder into a clean plastic bucket, add room temperature water, and stir until fully dissolved. Evenly distribute the solution over the pool surface. After application, run the circulation system for at least 30 minutes to ensure uniform chemical dispersion.
Application Frequency:
· Summer: every 2–3 days
· Spring & Autumn: every 3–5 days
· Winter: every 5–7 days
Notes:Do not broadcast dry powder directly, as excessively high local concentration may etch pool surfaces and irritate skin. Avoid using metal containers for dissolving, to prevent corrosion.
Dosage Guide (1 ton of water = 1 m³):
· Daily maintenance: 0.5–1 g per ton of water per day, released slowly through a chlorinator.
· Shock treatment: 3–5 g per ton of water, applied once weekly or when water quality deteriorates.
Application Steps:Use a floating or inline automatic chlorinator. Place TCCA tablets into the chlorinator, connect it to the filtration system or position it in the pool for slow dissolution and release. If applying directly, crush and dissolve tablets first; do not add whole tablets directly to the pool.Apply preferably in the evening after closing, to avoid chlorine degradation from strong daylight. Run the circulation system for at least 30 minutes after dosing.
Notes:Never place TCCA tablets in skimmer baskets or pump baskets, as high chlorine concentration may damage piping and filtration equipment. Do not mix chlorine tablets of different chemical compositions, as dangerous gases may form.
1. Wear chemical resistant gloves and safety goggles during handling to avoid skin contact or eye splashing. In case of accidental contact, rinse immediately with plenty of clean water and seek medical attention if severe.
2. Strictly prohibit storage with acidic cleaners, ammonia, or other reactive chemicals to prevent toxic chlorine gas formation. Store sealed in a cool, dry area, away from children, pets, and food.
3. Allow swimmers to enter only after free chlorine levels drop to ≤ 1.0 mg/L.
4. For long term use, regularly test cyanuric acid and total alkalinity levels, and supplement balancing chemicals as needed to maintain stable water chemistry.
Misconception 1: Arbitrarily substitute SDIC and TCCA without adjusting dosage.
Correction: Convert dosage based on available chlorine content to avoid over or under chlorination.
Misconception 2: Broadcast dry TCCA tablets directly into the pool.
Correction: Use a chlorinator or dissolve first to prevent equipment etching and skin/eye irritation.
Misconception 3: Only add sanitizer without adjusting pH.
Correction: Unbalanced pH reduces disinfection efficacy and causes equipment corrosion. Test and adjust pH regularly.
Misconception 4: Inadequate sealed storage and mixed storage with other chemicals.
Correction: Store tightly sealed to prevent available chlorine loss and eliminate safety hazards.
Standard use of SDIC and TCCA sanitizers ensures pool water safety, reduces operating costs, and provides a comfortable swimming environment for users.
