suck all the water out and keep it out for 24 hrs and put new water in
You can't! Muriatic acid (~32% HCL) will not add any free chlorine to the pool and will not function as a oxidizer (Shock).
You probably didn't put enough acid in it.
only about an hour if you are using baquacil
pool acid is made up of muriatic or hydrochloric acid that is it.
The pH level of a pool can be lowered by using a specific acid that is sold at pool supply stores. The acid is called muriatic acid, and it should be added to the pool while the water is circulating. About 1/4 gallon of the muriatic should be added per .1 part per million the pH needs to be lowered.
liquid pool acid is Muriatic acid or more commonly know as Hydrochloric acid (HCl)
That Acid is called Muriatic Acid. You put it in your swimming pool to lower the PH of the water. At lower PH Levels, the chlorine you use to sanitize the pool is more active, as a disinfectant. You MUST be careful not to put too MUCH Muriatic Acid in your pool! PH that is too low will create potentially deadly fumes, so test your water. Low pH is corrosive to plaster and metal pool parst.
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
acid is added to a pool when alkalinity is too high. Take a sample of pool water to your pool shop and have it tested by them. they will tell you what is required.
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..
You lower the Ph by using Muriatic acid VERY carefully. This acid and it's vapour is dangerous. With the pool pump ON, carefully add 1/4 gallon at a time, waiting 6 hours then testing.
You could add it back to the pool, if you need to lower the pH - but why put all the gunk the cell has taken from the water, back into the water? Better to discard the cell cleaning acid and use fresh acid to lower pH.