They just fall in. Even if you have a cover, they get under/through the cracks and fall in and drown. That's why there and skimmers and filters. I have a polaris system that works well to get stuff off the bottom. Worms that stay there for a while will stain so you must remove them regularly.
The chlorine is reacting to minerals in the water.
Yes
its the cleaning
Chlorine will dissipate after a couple of days of its own accord the only way to keep chlorine in is to keep adding it.
. All water is chlorinated by adding chlorine gas to it or by adding calcium hypochlorite or sodium hypochlorite. The term "chlorinated water" is misleading, as the final product is not chlorine, but a dilute solution of hypochlorous acid.
Everythging works better when the balance is correct, but you do not need to correct the pH before adding chlorine. Just keep an eye on it.
Chlorine kills many microorganisms, including bacteria, that can cause disease.
Well, if you mean chlorine gas (an element) adding an acid (which would usually require bubbling it through the acid) won't do much in most cases (but could depend on the specific acid).But, if you mean chlorine bleach (the compound sodium hypochlorite) adding an acid to it generates toxic chlorine gas.The simple answer is yes you can, but the smart and safe answer depends on which kind of "chlorine" you mean, where you are doing it, and if you want to generate toxic products or not. I definitely recommend against adding acids to household chlorine bleach!
Yes of course
No, you buy a new one.
Pretty much --Yes.
You can add liquid chlorine by walking it around the outside edges of the pool or adding 3 inch tablets through a chlorine floater.