Not at all. You could put it in at 9 in the morning or 6 at night. It all works exactly the same
Early morning or in the evening or even at night; heat and sunlight reduce the effects of chlorine or other shock methods.
Yes but you also need chlorine stabilizer (CYA) or the chlorine will be destroyed by sunlight in a very short time or you need to add the bleach in doses thoughout the day to maintain the chlorine level. Bleach is the same as liquid pool chlorine but at a lower concentration.
It is best to add chlorine in the evening, during the day there is a good chance the sun will burn it out before it gets a chance to work.
You have to add more chlorine.
If the pool had sufficient chlorine then the sickness may be due to the chlorine and it wiil pass, I would not worry. If there was no chlorine, or pool was dirty, sickness may be due to bacteria and if not better by next day see a doctor.
for safety reasons you should only add chlorine when no one is going to use the pool for at least 12 hours
Chlorine is usually kept in the pool at all times in the form of a tablet, if you mean the chlorine shock treatment which is a poweder that dissloves into the pool, I'd give it anywhere from 30 minutes to a day, depending on how much powder you've used to how many tablets are currently in the pool. Chlorine won't necessarily hurt you, since we swim in pools with it all the time, but it can burn your olfactory senses.
If your free chlorine level is 0, it means that there is no sanitizer in the pool which can lead to bacteria growth. Add chlorine shock to the pool to raise the free chlorine level to the appropriate range for your pool size. It's important to regularly test and maintain chlorine levels to ensure a safe swimming environment.
Testing kits are available to indicate when this is required. the best time of day to do this is in the evening as the nigh with no sunlight will not loose you as much chlorine until the next day.
You should always maintain "normal" chlorine. Shocking a pool consists of adding a large dose of pure liquid chlorine. This kills any algae (and othe rmicro-organisms). The chlorine is not stabilized, and will disspate within a day or so.
Remove the dead animal skim any floating materials from the top of the water vacuum the pool floor, then shock the pool with an extra strong dose of chlorine. The pool should be ok the next day.
Just add Chlorine manually to the pool... I recomend liquid chlorine, because if you decide to replace the cell the calcum from powder chlorine will clog up the cell... How much chlorine should you add depends on so many factors eg the size of the pool, the water temp, how much you use the pool ect, ect. Its All trial & Error. where i live, in east sydney Australia for an average pool (50,000L) i tell people 1L a day in summer & 1L every 2-4 Days in winter. but you really should get a test kit & test the chlorine every few day till you work out the chlorine demand of your pool....