How to Clean Lime Stains Off of Swimming Pool Tiles

Lime, calcium and hard water deposits tend to develop on tiles along the water line in even the cleanest of swimming pools. Scrubbing off these deposits is hard work, but it leaves the pool looking clean and inviting again. Lime deposits create a rough surface on your tiles to which algae can stick, and develop a slimy mess. Although the process to remove the lime stains is time consuming, it’s not difficult.

Drain the pool so the water falls at least 6 inches below the stain line. If you plan to stand in the pool while you scrub the tile, drain the water an additional 6 inches to keep the waves you generate from touching the stained tiles.

Climb in the pool or lie down on the pool edge so you can reach the stained tiles. Apply an acidic gel pool tile cleaner onto a small area of the stained tile with a lint-free cloth; stick to an area you can reach without moving to a new position. Rub the tile with the cleaner.

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Allow the gel to sit on the area for about 15 minutes. Dip a large nylon brush in a bucket of clean water and scrub the gel-covered area with the brush using a circular motion. Don’t dip the brush into the pool.

Wipe away the gel using a damp rag. Rinse the rag in the bucket and wring it out well before continuing to wipe away more gel.

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Repeat the process around all edges of the pool. Allow the pool tile to dry, then examine it for lime stains. Some don’t show up well when they’re wet, but when they are dry, circle the remaining stains with a grease pencil or crayon.

Apply gel and let it sit on the areas that are still stained. Scrub with a nylon brush and wipe the cleaner away with a damp rag. For stubborn stains that you can feel as well as see, scrape the tile with a razor blade tool or scrub it with a pumice stone after you apply the gel tile cleaner.

Article Source: http://homeguides.sfgate.com/clean-lime-stains-off-swimming-pool-tiles-28279.html