Shop pool chemicals
Home › Pool care guides

Swimming pool care guides

Practical dosing and troubleshooting from the manufacturers of Chemtex pool chemicals, in Kolkata since 1970.

Updated 12 November 2026

Guides

Calculate pool volume and chemical doseEvery pool chemical is dosed per litre of water, so the one number you need is your pool's volume. Here is how to work it out and scale each dose.Fix high or low pH in a swimming poolChlorine only works properly when pH sits between 7.2 and 7.6. Here is how to bring it back from either side.Get rid of algae in a swimming poolA green or mustard pool is almost always an imbalance problem plus an algae bloom. Fix the balance, kill the algae, then keep it from coming back.Clear cloudy swimming pool waterCloudy water is usually fine particles the filter can't catch, or water chemistry out of balance. Both are fixable without draining the pool.TCCA 90 chlorine granules: how to useTCCA 90 is a slow-dissolving, sunlight-stable chlorine used to disinfect swimming pools, ponds and fountains. Here is the correct way to dose it.Remove scale and stains from pool tiles and floorWhite crust on the waterline and rust-coloured patches on the floor are hard-water deposits. Different problems need different cleaners.Pool maintenance schedule and water balanceMost pool problems come from skipping routine care. This schedule keeps water clear and safe with a handful of products.

Swimming pool chemicals: common questions

What chemicals do I need for a swimming pool?

A basic pool needs chlorine for disinfection (TCCA 90 granules), a pH reducer and increaser to hold pH at 7.2 to 7.6, an algaecide, a clarifier for cloudy water and a tile cleaner for scale. Chemtex sells all of these, including a combo pack.

What is the best chlorine for a home swimming pool?

TCCA 90 granules (90% available chlorine) are widely used because they are sunlight-stable and slow-dissolving. Chemtex Pool Chlor is dosed at 1 to 1.5 kg per 1,00,000 litres at least once a fortnight.

Where can I buy swimming pool chemicals online in India?

Chemtex Speciality Limited sells swimming pool chemicals direct from its Kolkata facility at chemtex.shop, with delivery across India, dispatch within 24 working hours and free shipping above Rs 499.

How do I clear a green swimming pool?

Balance the pH to 7.2 to 7.6, brush the surfaces, dose an algaecide such as Pool Cide, keep chlorine up and run the filter. See our algae guide for the full routine.

How do I lower or raise pool pH?

Use a pH reducer (Pool Drop) when pH is above 7.6 and an alkalinity increaser (Pool Build) when it is below 7.2. Dose by tested pH per 50,000 litres.

Do you supply pool chemicals in bulk for hotels, clubs and societies?

Yes. Chemtex offers 5 litre jars and 5 kg packs, and can quote for bulk and institutional supply. Call +91-90739-38217 or use the contact page.

How long has Chemtex been making pool chemicals?

Chemtex Speciality Limited has manufactured speciality chemicals in Kolkata since 1970 and is certified ISO 9001, ISO 14001, ISO 45001, GMP and FSSAI.

Shop swimming pool chemicals

Browse the full range of swimming pool chemicals: chlorine, pH reducer and increaser, algaecide, clarifier, tile and floor cleaners, and a maintenance combo. Delivery across India, free shipping on orders of Rs 499 and above.