There are many kinds of pool disinfection chlorine tablets, including liquid chlorine, calcium hypochlorite (bleaching powder hypochlorite sodium (efficient bleaching powder, bleaching water) sodium dichloroisocyanurate (euchlorine net), bromochlorhydrin (bromine tablets), chlorine dioxide, trichloroisocyanuric acid (vital chlorine essence) of which 3 inch chlorine tablets 10 lbs are the simplest and most effective.
The disinfection of swimming pools to kill algae is the most important link in the water quality management of swimming pools. The main purpose of disinfection is to kill the bacteria and viruses in the pool water to prevent cross-contamination of swimmers in the pool water, affecting health.
Pool water disinfection is a very important issue, if not solved, the pool may become a place to spread disease. The water temperature in the pool is suitable for the growth of pathogenic bacteria such as typhoid, paratyphoid, dysentery, hepatitis, acute conjunctivitis, impetigo, etc. Hepatitis virus, encephalitis virus is often the way through the water to spread the disease.
The disinfection of pool water should generally meet the following requirements
- the disinfection method adopted shall have a solid sterilizing effect, which can kill bacteria quickly and in large quantities, i.e. 99.9% of microorganisms are eliminated within 30 seconds;
- the sterilization effect should have a reasonable duration so that the new contamination effect brought into the pool by swimmers can be effectively controlled;
- it must be non-irritating to the mucous membranes and skin of swimmers and must not cause undesirable odors in the air;
- the dose must be easy to control, and a simple way to quickly determine the number of pharmaceuticals present in the water and their effects;
- in the filtering of all relevant factors at the same time, the primary investment and transportation costs must have a good economy.
The most used swimming pool disinfectant in swimming pool water treatment today is the use of swimming pool 3 inch chlorine tablets 10 lbs or swimming pool disinfectant powder with trichloroisocyanuric acid as the main ingredient.
When using swimming pool disinfectants (swimming pool disinfectant powder or swimming pool 3 inch chlorine tablets 10 lbs) to disinfect swimming pools, it is best to apply them in two separate applications, one after the daily closing and the other 1-2 hours before opening.
Pool 3 inch chlorine tablets 10 lbs with trichloroisocyanuric acid as the main ingredient are chlorine disinfectants and volatile. The speed of volatility is directly related to sunlight and temperature. In summer, the sun is fierce and the disinfectant is easy to volatilize in hot weather.
If the disinfectant is added after the closing time of each day, the disinfectant can keep longer efficacy due to the relatively low temperature and no sunlight at night, which can disinfect the swimming pool water more thoroughly and effectively; the next day, depending on the opening time of each swimming pool, the residual chlorine can be tested 1-2 hours before the opening time, and if the residual chlorine is low, it can be added in an appropriate amount. If the chlorine residual is low, the disinfectant can be added to make the chlorine residual meet the health requirements. If the disinfectant is added too early, it will evaporate soon, and the chlorine residual will not reach the standard by the opening time.
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How to use pool 3 inch chlorine tablets 10 lbs
3 inch chlorine tablets 10 lbs have a chlorine content of ≥50% and are quick-dissolving tablets, which means they dissolve in about 10 minutes after being sprinkled into the pool. In order to make the residual chlorine of the pool meet the standard and maintain good water quality more effectively, 2-4 grams of disinfection tablets should be added per cubic meter of water. (2-4kg/1000 cubic meters). The formula for calculating the residual chlorine after 3 inch chlorine tablets 10 lbs are added to the pool: (Take 1 cubic meter to throw 2g-1 disinfection tablet to calculate as an example)
2g x 50% x 1000 = 1000mg (the effective chlorine contained in 2g of disinfection tablets, unit: mg); 1000mg ÷ 1000L (1 cubic meter) = 1mg/L (which is often said to be 1ppm).
Generally speaking, after adding the disinfectant, the chlorine disinfectant will definitely interact with the bacteria and algae in the water (also consumed by the organic matter in the water), and each swimming pool has different water quality conditions, so different pools have different measurable residual chlorine concentrations after adding the same number of disinfectant chlorine tablets. The concentration of residual chlorine varies from one pool to another, with the remaining chlorine being higher for good water quality and lower for poor water quality.
Therefore, it is recommended that at least 2 kg/1000 cubic meters should be added at night; if the water quality is already green or white, it is better to add the amount. When disinfection tablets are applied to swimming pools 1-2 hours before opening, it is better to test the residual chlorine first and then calculate its dosage by adding 2 kg of disinfection tablets per 1000 cubic meters which can raise 1 mg/L. For example, if a 500 cubic meter swimming pool is to be improved by 0.5mg/L, then 0.5kg of chlorine tablets should be added.
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The use of pool chlorine granules
Chlorine granules have a chlorine content of ≥ 90% and are slightly soluble in water. Generally speaking, when adding chlorine pellets to swimming pools, they are first mixed into an aqueous solution with a small bucket and then sprinkled into the water, at which time most of the chlorine pellets are not dissolved, and it takes about 1 hour to gradually dissolve completely in the swimming pool water.
In order to make the pool chlorine residual standard and more effectively maintain good water quality, chlorine particles should be added 1 to 2 grams per cubic meter of water. (1-2kg/1000 cubic meters). Chlorine particles are added to the swimming pool, and the residual chlorine formula: (1 cubic meter to throw 2 grams of chlorine particles to calculate for example, that is, 1000 cubic meters to throw 2 kg)
2g × 90% × 1000 = 1800mg (2 grams of chlorine particles contained in the effective chlorine, unit: mg), 1800mg ÷ 1000L (1 cubic) = 1.8mg / L (also commonly known as 1.8ppm)
Generally speaking, after adding the disinfectant, the disinfectant will definitely interact with the bacteria and algae in the water (which will also be consumed by the organic matter in the water), and each swimming pool has different water quality conditions, so the residual chlorine concentration will vary from pool to pool after adding the same amount of chlorine pellets. The water quality condition is good, and the remaining chlorine is high, the water quality condition is poor, and the remaining chlorine is low.
Therefore, it is recommended that the night dosing, preferably at 2 kg / 1000 cubic meters; if the water quality has been green or white, it is best to add the amount of dosing. When chlorine granules are added to the swimming pool 1-2 hours before opening, it is better to test the residual chlorine first, and then calculate its set amount by adding 2kg of chlorine granules per 1000 cubic meters can improve 1.8mg/L. For example, a 1000 cubic meter swimming pool can improve 0.9mg/L by adding 1kg of chlorine pellets, while a 500 cubic meter swimming pool can improve 0.45mg/L by adding 0.25kg (half a pound) of chlorine pellets.
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The commonly used disinfectant in swimming pools is chlorine tablets for pool, if added in excess will cause damage to the human body, and if added too little, it will not achieve the effect of disinfection, only the right amount of chlorine disinfectant can make the water quality to get a comprehensive disinfection at the same time will not affect the human body. With the official implementation of the new national standard (GB37488-2019) in recent years, the national health supervision department has become more detailed and comprehensive in its requirements for the residual chlorine content of pool water.
Therefore, it will be crucial to control the amount of chlorine-containing disinfectants. With the development of technology, some mature automatic disinfectant devices, with real-time monitoring of the chlorine content of the water in the pool automatically put chlorine tablets, which not only can play a role in controlling water quality but also can save the cost of labor to put pharmaceuticals, so many swimming places are respected.
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