You opened your pool cleaned all the big debris off the bottom and adjusted Ph - the water was clear - shocked the pool and the water turned green what caused this and what do you need to do?

Answer 1

The absolute fix for algae bloomed pool: DRAIN , ACID WASH and REFILL. More info about acid washing an Algae Bloomed Pool. Acid Washing an In Ground Pool: Also called a drain & acid 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 & acid 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 usually bring it back with chemicals, labor and extensive filtering. However , once a pool has turned dark green or even black , algae and mold spores have impregnated themselves into every porous depth of the pool surface and are difficult or impossible to remove by traditional cleaning and chlorinating methods. As a result the pool will continue to spawn new mold, algae and bacteria at an accelerated rate causing the pool to turn green quickly even though you may be vacuuming and chlorinating more. This will play havoc on your filter media such as sand ,cartridges or DE requiring frequent media changes to remove the contaminants. 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 permanently stain and adhere to plastered , concrete and gunite pools, making an acid wash desirable. An acid wash is, put simply, purposeful stripping of a tiny layer of plaster or concrete, exposing fresher , undamaged and clean material beneath. Therefore, it is ill-advised to make it an annual custom, which will accelerate the need for replastering. Most plaster coats (sometimes called whitecoat or marcite) are in excess of 1/2", so a few careful acid washes should not hurt. Pools can also be commercial strength bleach washed or high pressure washed if the effected area isn't that bad. Costs to acid wash and emptied pool range between 900.00 and 1200.00 in Maryland , Virginia and DC. If your pool is filled with contaminated water and debris, the cost to drain and acid wash may range 1600.00 to 2800.00 depending on the degree of contamination and the amount of non-drainable debris that must be removed and disposed of by manual labor. You may also decide on an acid wash not because of swamp conditions, mold , algae and bacteria 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 and save you a bundle in lost pool time , labor , filter media and chemicals. 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. In many states , permits may be required.In Maryland or Virginia you may want to contact AAA Home Services - Maryland Pool and Spa Repair to evaluate and determine if Acid Washing is necessary for your pool @ 877-752-7714