This video shows our process for cleaning calcium off of ceramic pool tile. The material we use is called Kieserite and it is discharged thru a nozzle with water to remove the stains off of stone, Pebble Tec and pool tile. The calcium buildup on this video would be considered a mild to moderate amount. The mineral is safe to use on all surfaces such as pool tile, stone, Pebble Tec, concrete, brick and glass tile. It is not harmful to plants, pets or children and does not change the Ph of your pool.
After all of your pool tile and stone is cleaned, we use our own powerful vacuum and filter equipment to clean the mineral and calcium from the bottom of your water feature or pool. We can repair any loose tiles, replace any missing or cracked grout and can seal all of the tile and grout. The water is then returned to it's normal level.
Also called a drain & clean, an acid wash becomes necessary if the pool has turned into the "black lagoon". This may occur if the winterizing process is not done properly, or if the pool has been stagnant for a period of time so that algae has taken over. If you notice scaly, man-phibian creatures splashing around out back, it's probably time to drain & clean.
Our general rule of thumb for determining the need for an acid wash is: if you can see the bottom of the pool (the floor) then you can bring it back with chemicals, labor and filtering. If the floor is not visible, the cost of the chemicals and labor will generally be greater than the acid wash charge, and take much, much longer. Also, extensive algae blooms will stain plastered pools, making an acid wash desirable.
An acid wash is, put simply, purposeful stripping of a tiny layer of plaster, exposing fresh plaster beneath. Therefore, it is ill-advised to make it an annual custom, which will accelerate the need for re-plastering. Most plaster coats (sometimes called whitecoat or marcite) are in excess of 1/2", so a few careful acid washes should not hurt.
You may also decide on an acid wash not because of swamp conditions, but just to bring out a brighter, whiter finish. Mineral stains and/or deposits, chlorine stains, even dirt stains...an acid wash is always a dramatic aesthetic improvement.
If your pool has had years of algae blooms, and if your pool seems to grow algae overnight or just bloom very easily....changing the water and acid washing the surfaces algae sticks to can give you an algae free summer.
Acid is a dangerous substance. Pool company personnel are specially trained in its application and wear protective clothing and breathing apparatus during the acid wash. To protect our environment, the acid/water waste should be neutralized with soda ash prior to its being pumped to a safe location.
If you decide to drain and clean your own pool, make sure that the hydrostatic relief plugs are pulled as soon as possible, and that the water is pumped to a distant location, or into a storm drain. You may also need to check with local water authorities for waste water discharge regulations.
As you drain the pool, wash it down (scrub if necessary) to remove all algae and leaves. Bag up all leaves and debris in the pool's bottom. When the pool is clean and empty, you can begin to acid wash the plaster. Put on protective clothing and rubber boots, goggles and wear a breathing mask designed for acid fumes.
Add 1 gallon acid to 1 gallon water in a flower watering can (Always add acid to water, never the other way around). Wet down the wall with a hose. Keep the hose(s) running at all times, without a nozzle on it. Pour the acid/water mixture down the wall, from top to bottom, one 10 foot section at a time. Do not allow the acid to sit on the plaster for very long. Usually 30 seconds is long enough. Use an acid brush to scrub the surfaces and move the acid around. Rinse quickly and thoroughly.
Make sure acid is rinsed completely, as it will continue to etch the plaster. Also try to prevent the acid from wearing a channel path from shallow end to deep end. This can create a worn stripe on the floor.
If the 50/ 50 mixture isn't strong enough, you can increase the acid strength or the hang time (before rinsing), or scrub harder. Usually pools are acid washed twice with the same strength mixture. Remember that you don't want to damage or "burn" the plaster.
After the acid wash, the bottom of the pool will be filled with a foamy, acid puddle. This needs to be neutralized before pumping out. Use 2 lbs of soda ash per 1 gallon of acid used. Broadcast the ash over the puddle while stirring with a pool brush on a pole. Use a small submersible pump with a hose to pump out the remaining acid water. Be careful where you pump it to. Even if properly neutralized, it may destroy plants or kill fish, frogs, etc. Rinse the bowl again, and re-pour the bowl of the deep end to clean up well around the drain, being careful not to burn the plaster too much.
Don't rush the job and be safe. The fumes can be very strong, and very dangerous. Be sure to wear a respirator that will block muriatic acid fumes, goggles or safety glasses and protective clothing. Wear old shoes, or rubber boots. Spray off before exiting the pool. Transporting the acid from the store to the house can be hazardous also. Secure the load in the vehicle. Always have a second person nearby when acid washing the pool. If acid drops enter the mouth or eye, rinse with the hose for 15 minutes, without a nozzle on it. Acid on the skin won't usually burn too much, just rinse quickly, for 30 seconds.
It is advised that you pay a service company to perform this for you.
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Pool Tile Cleaning
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