It's important because some people have allergic reactions to chlorine. Depending on the pH level they can, then determine if it's safe to enter the water.
my sack
Soda Ash
Lowers the Ph
It lowers PH
a swimming pool it should be neutral pH ie green
add a PH reducer chemical
Potash
Swimming pool buffer is a type of chemical treatment used to adjust the pH balance of the water. It helps to maintain proper water conditions which are ideal for swimming.
nothin
To adjust pH and/or lower alkalinity.
Bicarbonate will RAISE the pH and total alkalinity.
Usually the ph is tested with a phenol red indicator but litmus paper can be used