Waterline tile scale (calcium carbonate)
The white crust at the waterline is calcium carbonate from hard water and high pH. Use Pool Wash tile cleaner, a ready-to-use acid cleaner for glazed tile:
- Spray on the deposit; no dilution is needed.
- Leave for 10 minutes.
- Scrub gently and rinse thoroughly.
- Pump 2–3 turnovers before swimming and re-check pH.
The 5 L pool tile cleaning acid is the better pack for a full waterline or a drained pool.
Floor stains (iron, calcium silicate, hard water)
Orange-brown iron staining and grey-white calcium silicate marks on plaster need a different approach than an acid wash, which often leaves them behind. Pool Clean floor cleaner is ready to use:
- Drain the pool.
- Spread or spray the cleaner on the stained floor.
- Scrub, allow 10 minutes of contact, then rinse thoroughly.
- After refilling, re-balance pH and chlorine.
For full-floor work, the 5 L jar lifts iron deposits and calcium silicate that acid washing leaves behind.
Preventing scale
- Keep pH in the 7.2–7.6 band; high pH lets scale form.
- Watch total alkalinity and calcium hardness.
- Clean the waterline tile regularly before the crust builds up.
Safety
Acid tile cleaners should be used with gloves and eye protection, never mixed with chlorine products, and kept away from children. Rinse surfaces thoroughly.
Common questions
How do I remove white scale from swimming pool tiles?
Spray an acid tile cleaner such as Chemtex Pool Wash on the deposit, leave for 10 minutes, scrub gently and rinse. Pump 2 to 3 turnovers before swimming and re-check pH.
How do I remove iron stains from a pool floor?
Drain the pool, apply a floor cleaner such as Chemtex Pool Clean, scrub, leave for 10 minutes and rinse. Re-balance pH and chlorine after refilling.
Why does scale form on pool tiles?
Hard water and high pH let calcium carbonate come out of solution and form crust at the waterline.
Can I use Pool Wash and chlorine together?
No. Do not mix acid cleaners with chlorine products. Use them separately and rinse thoroughly.
Products used in this guide
Need help with dosing for a hotel, club or society pool? Call +91-90739-38217 or contact us. Delivery across India, dispatched within 24 working hours.