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Use a reliable test kit.
Drain your pool, then scrub the walls and floor with pool cleaner.
Chlorine typically dissolves in a pool within 24 hours, depending on factors such as water temperature, circulation, and sunlight exposure. It is important to follow manufacturer instructions for proper dosage and allow enough time for the chlorine to fully dissolve before using the pool.
ask the pool if they put more chlorine in
Pool shock typically contains a higher concentration of chlorine compared to regular pool chlorine products. Pool shock is used to quickly raise the chlorine levels in the water to kill bacteria and algae, while regular pool chlorine is used for maintenance and to keep the chlorine levels stable over time.
If your talking about Swimming pool its because your pool has chlorine in it and chlorine kills fish :(
It is safe. That just means that the chlorine is not actively killing bacteria. It would be unsafe if there was too much chlorine.
There could be several reasons why a pool may have no chlorine. This could be due to insufficient chlorine added to the pool, the chlorine being depleted too quickly, or the pool's filtration system not functioning properly. It's important to regularly test and maintain the chlorine levels in a pool to ensure proper sanitation.
Bleach is unstabilized chlorine. It is just a weaker form of the chlorine you buy at the pool store.
Free Chlorine is the Chlorine which is free to do its work in the pool, as opposed to Combined Chlorine which is chlorine that has combined with contaminants and is tied up and ineffective as a sanitizer in the pool. Sometimes you will see it abbreviated as FAC, which stands for Free Available Chlorine.
1 to 2 hrs. New answer: By pool powder - do you mean dry chlorine? Minimum time may be about 20 minutes with a good circulation system. That too, depends on the quantity of the "pool powder".
Other names for chlorine include Cl2, diatomic chlorine, and "pool shock" when used in pool disinfection.