If it has gotten to a state beyond the mild natural stuff put on a pair of rubber gloves and use a tile cleaner and a pumice stone which you can buy at pool supply stores or any hardware store.
Off the wall pool tile cleaner.
Guardian pool tile cleaner 32 oz.
A scraper to help remove thick calcium buildup as you soften it with your tile cleaner of choice.
Speed cleaning s scum bum which is safe to use on pool tile works great to remove calcium at the water line and it will even break down thick calcium buildup.
Amazon s choice for off the wall pool cleaner.
Bottle 1 case 3 5 out of 5 stars 15.
Bioguard off the wall bioguard pool cleaner spa cleaner surface cleaner 24oz product.
Glass bead blasting is used primarily on pebble tec pools.
Use a nonabrasive scouring pad to remove the hard water stains.
Rub the tile with the cleaner.
1 glass bead blasting uses a stream of ultra fine perfectly round glass beads about the size of a needle tip 10 microns to clean the calcium oil and grit off the tiles and grout.
Off the wall clings to vertical surfaces for easier cleaning.
According to its website the brand has been around for more than 50 years.
Bosh chemical vanish pool spa stain remover 2lbs natural safe citrus based works excellent on vinyl fiberglass and metals removes rust and other tough stains.
It s called the works.
Enhanced stain removal capabilities.
4 0 out of 5 stars 122.
Suitable for use on all pool and spa surfaces.
Non abrasive super thick gel formula.
Apply with a damp cloth sponge or brush and scrub at water level.
Do not attempt to clean the tiles from inside the pool.
Stick to an area you can reach without moving to a new position.
Spray the pool tiles with the muriatic acid mixture.
Off the wall allows you to efficiently remove scale dirt and stains on most types of pool and spa surfaces including vinyl fiberglass ceramic stainless steel aluminum and painted surfaces.
Rinse well after cleaning.
Since you ve let it go this far you might want to try a super cleaner that will really cut through the scale and scum.
Get it as soon as thu aug 20.
Off the wall penetrates and removes tough grime scale and deposits from pool and spa surfaces.
Allow off the wall to work on deposits for a few minutes then scrub with a wet cloth sponge or soft vinyl brush.
Apply an acidic gel pool tile cleaner onto a small area of the stained tile with a lint free cloth.
We like plastic scrapers because they don t scratch.
Wipe out 6012 all purpose surface cleaner for swimming pools 1 quart.