How to Remove Hard Water Stains From Pool Tiles

Chemically Remove Stains

• 1

  Drain the pool. Wipe any visible algae from the tile before chemically removing the stains.

• 2

  Put on the rubber gloves, safety glasses and face mask to protect your skin and lungs before you use chemicals to clean the tiles. Muriatic acid is a corrosive acid that effectively removes stains from tile, stone and concrete surfaces.

• 3

  Dilute muriatic acid with water using a 1-to-1 ratio. Fill a bucket with a gallon of water and add a gallon of acid to the water. Pour some of the solution into a clean plastic spray bottle.

• 4

  Spray the solution directly over the hard water stains. Scrub the stains with the soft bristle scrub brush. Use a soft bristle brush to help prevent scratching the pool tile.

• 5

  Rinse the solution away with a garden hose immediately after each application. Wipe the tiles with clean cloths.

Naturally Remove Stains

• 6

  Combine 2 cups white distilled vinegar and 1/2 cup baking soda in a bucket. The combination of acetic vinegar and the base baking soda will produce a chemical reaction that causes the mixture to bubble.

• 7

  Soak a clean cloth in the mixture and rub it onto the hard water stains. Let it sit for 15 to 20 minutes.

• 8

  Gather the vinegar and baking soda solution onto a soft bristle scrub brush. Scrub the tiles with the brush to remove the stains. Use a little elbow grease, but be careful not to scratch the tiles.

• 9

  Fill a bucket with warm water and pour the water over the tiles to rinse the cleaning solution away.

• 10

  Inspect the tiles for any remaining hard water spots. Repeat the process if there are stains left on the tile. Difficult or set-in stains may require two to three applications to remove the stains completely.