5 Tips for Removing Calcium Scale from Pool Tile

Use a wet pumice stone A wet pumice stone is the standard tool for ceramic or porcelain pool tile. It is soft enough to avoid scratching the glaze but effective at removing scale.

Wet both the stone and tile before scrubbing Rub lightly with the wet stone on wet tile. Rinse frequently and stop immediately if you notice any wear on the tile.

Avoid wire brushes, steel wool, or abrasive pads These will scratch the glazed surface, making scale stick even worse the next time. Stick to pumice only.

Try diluted muriatic acid for thick scale A 10:1 water-to-acid solution can help, but it must be neutralized and rinsed thoroughly. Acid is risky for grout and metal fittings, so use it only if pumice fails.

Always test in an inconspicuous spot first Test your method on a hidden area before tackling the whole tile. This prevents visible damage if the approach is too aggressive.