After pre-mixing cyanuric acid in a bucket with luke warm pool water (preferably), it's not a bad idea to wait at least an hour so it has time to properly mix throughtout the pool but if someone were to have a patient factor of lets say a 2 year old and jumped right in the worst that would happen may be some slight irritation but to this day I have not heard of this happening to anyone. Best of luck on the pool this season everyone.
It will mix very quickly so you can swim immediately. However what are you putting sulphuric acid in your pool for you should be using hydrochloric or mercuric acid
It is dead instantly.
Acid dilutes very fast, add it to your pool (while running to help circulation) and you should be ready to swim in about 30min. Best way to add it is by using a 5gal bucket, fill it so that you have room to add the acid then walk around the pool pouring into the edges of the pool. This will keep from damaging your plaster especially if your pool has dark plaster or pebble tech plaster. Hope you found this helpful..
Most metal control products are safe to add with no harm to bathers
Shock your pool at sundown and you can swim in it the next morning.
You don't have to swim to be strong However if you have the choice of adding it to your regime of exercise it is very good.
You die
Depending on quantity added -- about half hour.
You don't need to wait -your filter system will feed it in gradually and it will spread through the water.
My pool store said wait 5 hours, but it probably depends on the amount and concentration (liquid or powder).
they swim as long as they can
A person can go swimming in a pool a few minutes after adding algae treatment and shock to the water. This is provided that a low dose was used. The manufacturers of the algae treatment recommend that a person waits 45 minutes to an hour to swim after adding a normal dose.