Any time you like calcium is harmless
Shock your pool at sundown and you can swim in it the next morning.
maybe if you like to hurt yourself
Read the label, but usually it is safe. Pool Masters
It is generally safe to swim in a pool after adding liquid chlorine once the chlorine levels have dropped to recommended levels for swimming, which typically takes about 30 minutes to 1 hour. It is important to test the chlorine levels before entering the pool to ensure it is safe for swimming.
no
Yes
It is only safe to swim in a pool when a dead rat is found if it has been drained and sanitized. You risk dying if you enter before the pool has been 100 percent sanitized.
no you would have to do something about it
no it is not because you can get some in your foot.
No they will nibble your toes it will tickle and you will drown from laughing underwater.
yes.. it has a low pH ... acid rain... so you need to add pH plus.
Pool chemicals in general are not safe, especially for ingestion so be sure to keep these away from small children and pets. Many of the manufacturers now make shock that will not irritate the skin so you can swim almost immediately after adding.