If there is dirt on the bottom of the pool, it is best to vacuum it out. Organic debris (such as leaves) can cause staining. Brushing the sides and bottom is also important. Algae loves to hide in crevices and brushing strips away its protective slime coating so that the chlorine can kill it.
Do you mean that adding a little chlorine made the reading go from 0 to a higher level? You should shock your pool once a week with 1L of liquid chlorine per 10000L of water in your pool. You need to add enough chlorine to break apart the combine chlorine (the combination of chlorine and dirt which doesn't sanitize.) If you don't add enough at once, it will be used up and the chlorine reading will remain low.
No only for the amount of time that it takes to generate enough chlorine an average this is a minimum of 6 hours per day.
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we need vacuum to remove moisture from tank
There are enough minerals in the water and the make-up water. You do not need to add more. Maintain water chemistry ~ chlorine, pH, alkalinity and filtration. Ken
Chlorine gain an electron.
1. need replacement minerals, every season 2. the dial isn't turned far enough 3. you still need to add chlorine, just only half as often
The jobs that will need to know about chlorine are jobs that deal with the water flow.
Working with chlorine need serious precautions.
You have to ensure there is good ventilation when you prepare chlorine in a laboratory because chlorine is toxic so you need to ventilate it to avoid breathing it in.
If you want the water to stay clean and disease-free, than yes.you dont NEED to use chlorine tablets. you can use the other kinds of chlorine there are.
No it does not have to be. It is just a measure of how usable the chlorine is.