Ad cyanuric acid/stabilizer, this is available from your pool shop
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 :(
Bleach is unstabilized chlorine. It is just a weaker form of the chlorine you buy at the pool store.
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.
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.
Other names for chlorine include Cl2, diatomic chlorine, and "pool shock" when used in pool disinfection.
opening a pool is different then closing a pool because opening the pool is when the pool is all filled up with water an fixed an has chlorine in it and closing the pool is if u don't have no chlorine in it and it is not fixed or don't have no water in it
Chlorine and stabiliser
This is a tricky answer but it's quite simple... Actually the chlorine they used for the pool is like the chlorine we use to clean our fish tank. They use it to clean the germs in the pool ex. urine in the pool and young kids who can't hold back their poo.
Excessive levels of chlorine stabilizer can reduce the effectiveness of chlorine in the pool. Try diluting the pool water by partially draining and refilling it to lower the stabilizer concentration. Test the water again after dilution to see if the chlorine levels improve.
To add chlorine to your pool, first test the water to determine the current chlorine levels. Use chlorine tablets or liquid chlorine based on the pool's needs. Follow the manufacturer's instructions for dosage and application method, typically dispersing the chlorine around the perimeter of the pool to ensure even distribution.
To reduce chlorine levels in your pool, you can dilute the water by adding fresh water. You can also utilize a chlorine neutralizer to help bring down the chlorine levels quickly. Additionally, allowing the pool to sit uncovered in direct sunlight can also help to dissipate chlorine.