For light, thin calcium deposits, try using a soft brush (such as an old toothbrush) and a solution of vinegar and water. If that doesn't work, try cleaning the tile with a solution of water and muriatic acid (you can find muriatic acid at your local hardware or pool supply store).
Use a cleaner
In cases where your dirt and grime is only minimal, you can use homemade cleaners as such vinegar with water, baking soda and vinegar, toothpaste or even dish soap to remove the deposits. For tough stains or calcium silicate scaling, you'll need to clean the area using a pumice stone.
If your pool has calcium carbonate deposits, you can remove them with a pumice stone, stain eraser or scale remover. A pumice stone should only be used on hard surfaces, such as tile and concrete. Simply use the stone to scrub the deposits.
Can CLR be used on pool tile? Unfortunately, we do not recommend using CLR on pool tile. It could remove the finish from the tile. In addition, if CLR comes in contact with chlorine, it could result in toxic fumes.
Calcium buildup is a white and scaly buildup caused by high pH or alkalinity levels in your pool water. This causes calcium carbonate to separate from the water and stick to the pool tile.
Spray 100% vinegar on tile and let it sit for 5 minutes. Clean a few tiles at a time, rinse with pool water, evaluate, and continue. Repeat until all of the pool tiles are clean.
Just like you run vinegar through your coffee pot to get rid of calcium buildup, white vinegar can wipe away this eyesore in your pool. Mix a 50/50 solution of vinegar and water, dip a sponge or soft cloth into it, and scrub that residue away.
Baking soda is a great medium to use when cleaning pool tile as it's soft and gentle. It works perfectly on pools made of stone tiles, pebble, and ceramic tiles. You can mix the baking soda with water and use a cloth to spread the paste on your pool tiles. Alternatively, if you want to do it faster, use a spray bottle.
Use Safe Cleaning Products for Your Pool Tiles
Many products used to clean pool tiles contain bleach or other ingredients that may change the color of your tiles. These products can also leave your tiles with a dull appearance, so it's always best to use products that swimming pool experts in your area know and trust.
If there has been a serious invasion of excess dirt and debris, you may also need to shock your pool. Vacuuming is recognized as the only way to remove sediment from the bottom of a pool.
Cleaning with a pumice stone takes a lot of time and effort. Depending on the amount of calcium build up this could take hours and hours over several weekends. And contrary to what your pool store or pumice packaging may say, pumice does scratch the tile surface.
Don't use dangerous chemicals to clean them with, instead, use a sheet of drywall sandpaper. It has enough "bite" to remove the calcium deposits, but not enough to scratch delicate tile surfaces. Fast and easy with no worries of skin burns chemicals can give. Wet the sandpaper first, then just wipe.
Therefore, a lot of people keep away from ever using a drop of bleach near their pools. Bleach is safe and the only chemical you should be using in your pool unless cleaning pool tile with baking soda. So yes, you can use bleach to keep your pool water chemistry balanced.
Short answer: yes. Longer answer: it depends on the formulation. The label on every bleach bottle should tell you the ratio of sodium hypochlorite (and available chlorine) in the bottle to everything else. A higher percentage is generally better, as you'll need to use less bleach to treat your pool.
If you need to mildly shock a 30,000-gallon pool by raising the free chlorine concentration to 5 ppm, you need 2.5 gallons of bleach. To raise it to 10 ppm, you need 5 gallons.
Pool algae can be caused by poor filtration, out-of-balance water, low or inconsistent chlorine levels, or poor water circulation. Green, dark green, yellowish green and blue-green algae are the most common. Green algae are slimy.
A nylon or rubber brush is the correct choice for scrubbing the sides of a soft-sided above-ground pool. A large pool brush makes quick work of the job, but you may need a smaller brush to clean corners. Once the particles have been removed from the sides of the pool, turn your filter back on and agitate the water.
If you are talking about bluish green discolouration of the grout, it is probably due to copper compounds forming from the ant-algae.
Baking soda can work wonders in a pool. Baking soda can: Help to clear cloudy water and restore the sparkle. Spot-treat algae.
Baking Soda and Green, Blue, or Yellow Algae
You'll need to use an algaecide to kill the algae and superchlorinate your pool to clear the water. After this treatment, test your pH and alkalinity and add baking soda to raise alkalinity to at least 100 ppm and pH to between 7.2 and 7.8.
Baking Soda (Sodium Bicarbonate) is used to raise alkalinity and also slightly raise pH. And Soda Ash (Sodium Carbonate) is used to raise pH and slightly raise alkalinity. For example, getting a pH reading around 7.2 to 7.6 in 10,000 gallons (37,854 liters) of pool water would take roughly 21 pounds of baking soda.