For residential swimming pools : 
PoolClean is the oxidizer of choice, whether the pool is constructed of gunite and plaster, vinyl liner, or painted concrete. It eliminates the need to shock with heavy chlorine doses which can bleach and fade vinyl liners and painted surfaces. For pools with moderate daily use, add PoolClean weekly at a dose of one pound per 10,000 gallons of pool water. More frequent and/or heavier doses may be required when bather loads are extremely heavy or following heavy rains or high winds. PoolClean is also an ideal oxidizer for winterizing applications. It oxidizes and destroys. PoolClean is easy to use. PoolClean can be added to pool water day or night, and swimming can resume after a short waiting period to allow for adequate mixing and dispersion throughout the pool. No mixing is required. PoolClean is completely soluble in water and dissolves quickly. Broadcast PoolClean shock slowly and uniformly over the surface of the water, adding about two-thirds of the total dose over the deep end. Shock with the filter running to ensure complete mixing and good circulation. contaminants and prolongs the activity of sanitizer residuals throughout the long winter months. 

For public swimming pools :
Oxidizing with PoolClean offers significant advantages for public pools, particularly when dealing with the burden of heavy public pool bather loads, which result in a lot of bather waste. Chlorine products are often used for shocking public pools, but there are serious drawbacks to using excessive chlorine. When used in heavy doses, chlorine readily reacts with many contaminants in pool water to produce foul smelling and irritating combined chlorine compounds called chloramines. Chloramines can be simple compounds, such as monochloramine, or they can be much more complex, like the organic chloramines. Organic chloramines can be quite resistant to oxidation by free chlorine, and they can persist long after chlorine shocking. In addition to generating irritating and persistent combined chlorine compounds, shocking with chlorine can also raise chlorine residuals to unacceptable levels, requiring dechlorination to lower the chlorine level, or requiring that the pool be closed to the public until the level of chlorine drops to an acceptable range. Regular shocking with PoolClean pro-vides sufficient oxidation to destroy these contaminants, thus promoting maximum sanitizer efficiency. Since PoolClean is chlorine free, it will not form irritating combined chlorine compounds. PoolClean is especially well suited for indoor pools where odors and irritation from high chlorine shock doses and persistent chloramine residuals are magnified. 

Public pools generally require heavier doses of oxidizer than residential pools, due to their heavier bather loads. A good starting point is to shock weekly with one to two pounds of PoolClean per 10,000 gallons of pool water. The dose required and the shock frequency will depend largely on the bather load. 

For spas : 
PoolClean has two distinct roles in spa water treatment—to oxidize bather waste and other organic contamination and to generate bromine sanitizer by oxidation of bromide ion when used with bromine products such as sodium bromide and bromine tablets (BCDMH).The frequency of spa shocking is largely dependent upon use, but in general, spas require higher doses of oxidizer than swimming pools. PoolClean should be added to spa water after every use, at a dose of about one to two ounces per 250 gallons, to immediately oxidize and eliminate organic contaminants introduced by bathers. Public spas which are used every day may need to oxidize with PoolClean daily. Since many spa chemical suppliers design combination, or two-part, systems which include sanitizing and oxidizing chemicals, the best rule of thumb is to follow label recommendations for dosage requirements. 

For pools and spas using bromine :
PoolClean is widely used with sodium bromide as one part of a two-product disinfection system. In these systems, PoolClean, or activates, bromide ion to bromine which rapidly forms the active sanitizer hypobromous acid. Upon reaction with bacteria and other pool and spa water contaminants, hypobromous acid is reduced back to bromide ion. Bromide ion can be activated over and over again, thus recycling the active bromine sanitizer. PoolClean begins to produce bromine immediately and continues to do so for several hours, providing sufficient time for oxidation of bather wastes and other organic contamination. When used with bromine products such as sodium bromide and bromine tablets (BCDMH), PoolClean functions both as an activator of bromide ions and as an oxidizer of organic waste.

Dr Venkatesh Devanur, Director R & D, RADOSOM, a Govt of India, Dept of Scientific and Industrial Research recognized R & D Centre has recognized the situation you are in and would like to offer professional advise in this regard.