Cleansol TCCA 90 Chlorine Granules

In water, TCCA releases hypochlorous acid – the active form of chlorine that kills bacteria, viruses and algae – plus cyanuric acid, which acts like sunscreen for chlorine. In strong sunlight, unstabilised chlorine can lose about a third of its strength every hour; stabilised chlorine lasts much longer. That is why TCCA is the first choice for outdoor pools in India.

For every 1 ppm of chlorine TCCA adds, it also adds about 0.6 ppm of stabiliser. A little stabiliser is good (30–50 ppm); too much slows the chlorine down. The routine below keeps it in balance.

The basic rule: 1.1 g of TCCA 90 in 1,000 litres raises free chlorine by 1 ppm. Pool volume in litres = length × width × average depth (in metres) × 1,000.

🧮 Work out your exact dose with our free Swimming Pool Chlorine Calculator – enter your pool size and test reading. These doses are a starting point: your daily test reading decides the final dose.

1. pH – the biggest factor in how hard chlorine works. The same chlorine is much weaker at high pH:

*Hypochlorous acid share of free chlorine at about 27°C, in water without stabiliser. Stabiliser softens the effect of pH, but 7.2–7.6 is still the right range for comfort and clear water.

TCCA is acidic, so it slowly lowers pH and alkalinity. Check pH daily. If it falls below 7.2, raise it with Cleansol pH Up (start with 5 g per 1,000 L, dissolved, and re-test after 4–6 hours). If alkalinity falls below 80 ppm, add Cleansol Alkalinity Up – about 17 g per 1,000 L raises alkalinity by 10 ppm.

2. Stabiliser (cyanuric acid). At 30–50 ppm it protects chlorine from the sun. Above that, the chlorine works more slowly, so keep free chlorine at least 2–3 ppm. Daily TCCA use raises stabiliser by roughly 1 ppm a day – it only leaves the pool with backwash, splash-out and fresh water. If it goes above 80–100 ppm, replace part of the water with fresh water, and use Sodium Hypochlorite instead of TCCA for a few weeks.

3. Sunlight. UV breaks chlorine down. Stabilised TCCA is protected, but still dose in the evening or after closing, so chlorine works overnight without sun loss.

4. Water temperature. Warm water (30°C and above in Indian summers) uses chlorine faster and grows algae faster. Expect to dose at the higher end of the range in April–June.

5. Swimmers. Sweat, body oils, sunscreen and urine use up chlorine and form chloramines – the cause of the "chlorine smell" and red eyes. More swimmers means a bigger dose. A quick shower before swimming cuts chlorine use noticeably.

6. Rain, dust and leaves. Rain dilutes the water and lowers pH; dust storms and leaves bring organic dirt. Test and top up chlorine after every heavy rain or dust storm.

7. Source water. Borewell or tanker water can contain iron and manganese, which turn the water brown or green when chlorinated and use up chlorine. After the first chlorine dose, settle the brown particles with Pool Floc Powder, vacuum them out to waste, then bring chlorine back to 2–3 ppm. Very hard water (calcium above 400 ppm) leaves scale on tiles.

8. Filtration and circulation. Chlorine only works where water moves. Run the pump at least 8 hours a day, backwash the filter when the pressure rises, and brush walls and corners weekly with a Pool Algae Brush.

1. Test first. Check free chlorine and pH with a Pool pH & Chlorine Test Kit. Correct pH to 7.2–7.6 before adding chlorine.
2. Weigh the dose with a clean, dry plastic scoop. Never let water or other chemicals into the TCCA container.
3. Pre-dissolve: fill a clean plastic bucket with pool water, then add the granules to the water (never water onto granules). Stir with a plastic stick. TCCA dissolves slowly – use about 10 litres of water for every 100 g.
4. Pour slowly around the pool or in front of the return inlets, with the pump running. In tiled pools, any undissolved granules can be spread over the deep end and brushed – in liner, painted or fibreglass pools always pre-dissolve fully, as settled granules can bleach the surface.
5. Dose in the evening and keep the pump running for at least 4–6 hours. Re-test before swimmers enter – open only when free chlorine is between 1 and 4 ppm.

⚠️ Never mix TCCA with bleaching powder or calcium hypochlorite – even small amounts together can cause fire or an explosion. Never add TCCA to a skimmer or feeder that has held another chlorine product. Never mix it with acids, ammonia, sodium hypochlorite or any other chemical in a container.

• Daily: test chlorine and pH, dose TCCA in the evening, skim leaves with a Leaf Net.
• Twice a week: brush walls, steps and corners; vacuum the floor.
• Weekly: check alkalinity, backwash the filter, add Copper Sulphate Algaecide if your pool is prone to algae.
• Monthly: check stabiliser and hardness; replace 10–15% of the water if stabiliser is climbing.

TCCA is meant for outdoor pools. For indoor pools and spas, which get no sunlight, use unstabilised chlorine such as sodium hypochlorite.

Cleansol (Chemtech Corporation) has been a TCCA 90 supplier in Jodhpur since 2002, supplying chlorine granules in tonnes to hotels, resorts, clubs, schools, housing societies, pool contractors and water-treatment plants. Orders are dispatched from Jodhpur within 24 working hours and delivered across Rajasthan – Jaipur, Udaipur, Jaisalmer, Bikaner, Ajmer and more – and all over India in 3–6 days. For 50 kg drums and regular tonnage supply, WhatsApp 98290 05860 for a bulk price.

• Genuine TCCA 90: 90% minimum available chlorine – no fillers, no low-grade blends.
• True 5–8 mesh granules: uniform size, low dust, easy to weigh and dissolve.
• Trusted in bulk: supplied in tonnes to pools, hotels and industries for over 15 years.
• Long shelf life: 36 months when stored dry and closed.
• Honest guidance: clear doses and water-balance advice, plus WhatsApp support from our team.
• GST invoice on every order.

• Strong oxidiser. Keep away from bleaching powder, calcium hypochlorite, acids, ammonia, oils, paper, wood and anything flammable.
• Keep it dry. A little water or moisture inside the pack can release chlorine gas. Always close the lid tightly and use a dry scoop.
• Wear gloves and eye protection; do not breathe the dust. If it gets in the eyes, rinse with plenty of water for 15 minutes and see a doctor.
• Always add TCCA to water – never water to TCCA. Never mix it with other chemicals.
• Store in the original container, in a cool, dry, ventilated place, away from sunlight and out of reach of children.
• Do not reuse the empty container for other chemicals.

TCCA 90 (trichloroisocyanuric acid) granules, 5–8 mesh, 90% available chlorine – stabilised chlorine for swimming pools, water tank disinfection, cooling towers and ETPs. Dosing information is general guidance; follow your test readings and local regulations. For bulk queries, email info@cleansol.in.