Pool water disinfection is generally performed using either disinfecting chlorine tablets or disinfecting powdered trichloroisocyanuric acid. Disinfection with trichloroisocyanuric acid disinfectant (disinfecting chlorine powder or chlorine tablets for pool) is best done in two applications, one after the daily closing and the other 1-2 hours before opening.
All chlorine disinfectants are volatile and can quickly evaporate in hot summer weather. If 3 inch chlorine tablets 25 pounds are added after the daily closing time, the disinfectant can stay effective for a longer period due to the relatively low temperature and lack of sunlight at night so that the disinfection can be more thorough; the next day, depending on the opening time of each pool, the residual chlorine can be tested 1-2 hours before the opening time. To meet the health requirements.
Under normal circumstances, it is appropriate to put 2-3kg per 1000 cubic meters of water, twice a month (and the following steps can only be done 2 hours after the drug is put in). However, the increase of swimmers will bring some organic contamination, in addition, if the treatment is new water, it is necessary to double the dosage.
Long-term water storage in the pool, easy to breed bacteria, the need for the long-term pool maintenance, but if the maintenance is not in place, the water quality has been poorly treated, the pool can not be the normal use of the pool, the manager can only replace the pool water, re-injection of new water, however, the cost of this approach is larger.
Disinfectant 3 inch chlorine tablets 25 pounds have ≥50% chlorine content and are instantly soluble tablets, which means they dissolve in about 10 minutes after sprinkling into the pool. In order to make the pool chlorine residual standard and maintain good water quality more effectively, 3-5 grams of disinfectant tablets should be added per cubic meter of water. (3-5kg/1000 cubic meters).
The formula for calculating chlorine residual after disinfection 3 inch chlorine tablets 25 pounds are added to the swimming pool: (2g-1 disinfection chlorine tablets per cubic meter for example)
2g × 50% × 1000 = 1000mg (2g of effective chlorine contained in the disinfection tablets, unit: mg)
1000mg ÷ 1000L (1 cubic meter) = 1mg/L (often referred to as 1ppm)
After adding the disinfectant, the 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 after adding the same number of disinfectant tablets, different pools will have different concentrations of residual chlorine. The residual chlorine concentration varies from one pool to another, with the remaining chlorine being higher for good water quality and lower for poor water quality. Therefore, we suggest 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 more.
When adding disinfection tablets 1-2 hours before opening, it is best to test the residual chlorine and then calculate the amount to be added by adding 2 kg of disinfection tablets per 1000 cubic meters to improve the ratio of 1 mg/L. For example, if a 500 cubic meter swimming pool is to be improved by 0.5 mg/L, then 0.5 kg of disinfection tablets should be added. For example, if a 500 cubic meter swimming pool is to be improved by 0.5mg/L, then 0.5kg of disinfection tablets should be added.
To learn How to Choose the Right 3 chlorine tablets for pool Size, read this article: How to Choose the Right 3 chlorine tablets for pool Size
The use of trichloroisocyanuric acid disinfectant powder
The chlorine content of disinfectant powder is ≥90%, slightly soluble in water. Generally speaking, when disinfectant powder is added to swimming pools, it is first mixed into aqueous solution in a small bucket and then sprinkled into the water, at which time most of the disinfectant powder is not dissolved and it takes about 1 hour to dissolve completely.
In order to make the pool chlorine residual meet the standard and maintain good water quality more effectively, 1 to 2 grams of disinfectant powder should be added per cubic meter of water. (1-2kg/1000 cubic meters).
After the disinfection powder is added to the pool, the formula for calculating the residual chlorine: (2g of disinfection powder is added to 1 cubic meter as an example, i.e. 2kg for 1000 cubic meters)
2g×90%×1000=1800mg (2g of effective chlorine contained in the disinfectant powder, unit: mg)
1800mg ÷ 1000L (1 cubic meter) = 1.8mg/L (often referred to as 1.8ppm), which means that if 2g of disinfectant powder is added to 1 cubic meter of water, the theoretical concentration will be: 1.8mg/L if there is no consumption.
Generally speaking, after adding disinfectant 3 inch chlorine tablets 25 pounds, the disinfectant will definitely interact with the bacteria and algae in the water (also consumed partly by the organic matter in the water), and each swimming pool is different due to the water quality condition, so the measurable residual chlorine concentration varies from pool to pool after adding the same amount of disinfectant powder, and the remaining chlorine should be high for good water quality condition and low for poor water quality condition.
Therefore, we suggest that it is better to add 2 kg/1000 cubic meters at night; if the water quality is already green or white, it is better to add the amount.
When disinfection powder is added to a swimming pool 1-2 hours before opening, it is better to test the residual chlorine first and then calculate its set amount by adding 2 kg of disinfection powder per 1000 cubic meters which can raise 1.8 mg/L. For example, a 1000 cubic meter swimming pool can improve 0.9mg/L by adding 1kg of disinfectant powder, while a 500 cubic meter swimming pool can improve 0.45mg/L by adding 0.5kg of disinfectant powder.
To learn Cheapest 3-inch Chlorine Tablets, Your Swimming Pool Is Save, read this article: Cheapest 3-inch Chlorine Tablets, Your Swimming Pool Is Save
Notes on the use of pool 3 inch chlorine tablets 25 pounds
- Disinfection 3 inch chlorine tablets 25 pounds stored in a dry and cool place, do not sunlight. Especially for instant chlorine tablets, it is easy to explode after sunbathing. It is better not to use instant chlorine tablets to disinfect water. If you use instant 3 inch chlorine tablets 25 pounds to disinfect water, please pay attention not to cover the lid, after the water is disinfected and covered, it is easy to explode.
- Disinfection with sodium hypochlorite must add acid. Sodium hypochlorite alkaline is relatively large, no acid pool water long-term alkaline will cause pipeline scaling, and quartz sand slating, causing great damage to the circulation filter equipment.
- Sodium hypochlorite degrades quickly, the latest production of sodium hypochlorite chlorine content is 8%, and the chlorine content will become 5% after a week of storage. After a week of storage, the chlorine content will become 5%. There will be no chlorine content if stored for too long. Adding medicine to the pool is actually the same as adding alkali to the water, which has no disinfection effect.
- The acidity and alkalinity of trichlor is very low. Adding trichlor is equal to adding acid to the water, so pay attention to the test and add alkali to adjust the PH value.
- If you use a dosing pump to add chemicals, you can choose to use odorless 3 inch chlorine tablets 25 pounds to disinfect the water and then add it through the dosing pump.
- The counter-current pool must not add flocculant, sink down, a filtering system, sink to the bottom of the pool and up, and repeatedly. If the sedimentation agent is added, use the suction machine to suck clean and then open the filter.
- If the water source is groundwater, do a small test before adding chlorine. If the color changes, add the sea dragon protectant first, then add the 3 inch chlorine tablets 25 pounds.
- Chlorine and algaecide should not be added at the same time, and the time between the two agents should be at least two hours apart.
To learn Do You Know the pool cleaning tablets? Pools Cleaning Best Friend, read this article: Do You Know the pool cleaning tablets? Pools Cleaning Best Friend！
Adjustment of pH regulator (acidity and alkalinity)
The pH of swimming pool water is 6.8-8.2, and the best range is 7.6-7.8. First of all, this pH level will not cause irritation to human skin and eyes; meanwhile, most bacteria, algae, and protozoa are most suitable for growth at pH 6.5-7.5, therefore, pH control at 7.8 is the best.
Swimming pools generally use a pH regulator to raise the pH of the pool water at a dose of 10 grams per cubic meter of water for every 1.0-degree increase. (For example, 1000 cubic meters to raise the pH by 1 would require 10 kg of sodium oxide)
Putting clarifier
To maintain good water quality in swimming pools, it is best to open the circulation filtration system regularly every day to remove suspended matter, algae, and other impurities in the water through sand tank filtration. If this does not achieve good results, then we need to put in a sedimentation agent, water purifier aluminum chloride and super blue clarifier or clear water HTH, etc. Before adding these two water-purifying agents, it is best to do a shock treatment first best.
The use of aluminum chloride
Before using aluminum chloride (powder), be sure to measure the pH value of the water (i.e. acidity, such as water is acidic, then add pH adjuster to raise the pH value), to ensure that the pool water is alkaline (i.e. pH value of about 7.6 is more appropriate), and then add this aluminum chloride powder for precipitation and purification, according to the amount of water 5-8 grams / square water put (i.e. 1000 cubic meters cast 5-8 kg).
When put in, first dissolve the aluminum chloride in the ratio of 1 part of aluminum chloride to 15 parts of water, then add water 20-50 times dilution, and then evenly sprinkled into the pool. When alum bloom appears in the pool water, rest for 8-12 hours before vacuuming. Dosing is best done at night after closing.
Swimming pool water quality standards
1, PH value 6.5-8.5
2, turbidity is not more than 5 degrees or pool water transparency should be in the depth of about 1.5m two coastal shore can see the bottom of the pool four, five lanes shall prevail.
3, oxygen consumption shall not exceed 12mg / l
4, swimming residual chlorine should be 0.3-0.5mg / l, and chemical residual chlorine should be more than 1.0mg / l.
5、The total number of bacteria shall not exceed 18/L
6, urea shall not exceed 3.5mg/L.
7, the pool water temperature is 22 ℃ -26 ℃
Swimming pool water quality testing every six months third-party testing.
To learn Pool Water Purification Solutions – Optimal Use of 3 inch chlorine tablets 25 pounds, read this article: What Is The Best Swimming Pool Tablets For Your Pool?