How to Clean Swimming Pool Tiles: A Guide to Removing Calcium and Algae
- meantimeback
- Oct 28
- 2 min read
Updated: Oct 28
Why Pool Tiles Get Dirty
Even the best-installed pool tiles can lose their sparkle. Calcium scale, algae growth and metal stains slowly dull the surface. Many owners reach for harsh chemicals that can damage grout or alter water balance. The right cleaning method restores shine without harming the finish.
Understanding the Culprits
Calcium Deposits: Form when pH or hardness is too high, leaving a chalky line.
Algae Growth: Occurs when chlorine levels drop, creating green or black staining.
Metal Stains: Rust-coloured spots from fittings or bore water.
Knowing which one you’re tackling helps you choose the right technique.
How to Remove Algae Stains from Pool Tiles
Brush and Vacuum: Use a nylon brush, not metal, to loosen growth.
Shock the Pool: Raise chlorine to recommended “shock” level for 24 hours.
Scrub with Algaecide Solution: Apply diluted pool-safe cleaner along the waterline.
Rinse and Filter: Backwash or clean filters to remove debris.
Persistent black algae may require professional acid-washing.
How to Get Rid of Calcium Scale
Pumice Stone Method: Gently abrade thick deposits — keep both stone and tile wet.
Vinegar or Diluted Acid Wash: Effective for light scale; always wear gloves and goggles.
Commercial Descalers: Choose ones labelled safe for ceramic or glass tiles.
Professional Cleaning: Depth Works technicians use pressurised systems that remove scale without damaging grout or waterproof membranes.
Preventing Build-Up in the First Place
Maintain correct pH (7.2–7.6) and calcium hardness (200–400 ppm).
Run filtration daily and keep chlorine steady.
Wipe the waterline weekly before deposits harden.
Schedule quarterly maintenance with a professional crew.
When to Call a Specialist
If calcium or algae returns quickly, the issue lies deeper — often with plumbing or circulation. Depth Works provides full-system inspections, chemical balancing and underwater maintenance across Melbourne, regional Victoria and beyond.
Conclusion - Clean Tiles, Clear Water
Regular care keeps your pool beautiful and healthy. For stubborn stains or complete restorations, bring in experts who understand aquatic materials and waterproofing.
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