Alkalinity first! First check to see where the total alkalinity is in PPM, then determine how many PPM change is needed to reach your target reading. Caution, I alway aim for 10 to 20 PPM below my ideal reading, because when you begin to adjust the pH, the TA will rise.
Adjust alkalinity first
To adjust pH and/or lower alkalinity.
Alkalinity
Alkalinity is not an actual "chemical", however if you are concerned about increasing the alkalinity in your swimming pool, you are perfectly safe. The chemical that increases "total alkalinity" in a swimming pool, is only baking soda. It wil not harm the human body!
Reduces alkalinity of swimming pool water (softens hard water)
Add rain water this has very low alkalinity
pH and total alkalinity out of balance.
You have to know what you are doing. The addition of muriatic acid lowers the pH and total alkalinity in swimming pools.
Bicarbonate will RAISE the pH and total alkalinity.
The water becomes aggressive and attacks anything with which it comes in contact. Not a good environment for the pool finish or the equipment.
Clean the filter first; 24/7 fileration; superchlorination; adjusting the pH and Total Alkalinity to specs. When pool is crystal clean - clean the filter again, readjust chemistry, maintain 12 to 15 hrs of filtration thru the swimming season.
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.
You just have to watch you pH and alkalinity levels and adjust at least weekly.