pH is the hydrogen or hydroxide concentration in your pool. pH is a logarithmic scale ranging from 0-14 and 7 being neutral.
High chlorine levels will make the pH in your pool high. You can add borates to help stabilize the pH level in your pool.
It depends on the volume of your pool and what level your Ph is at.
adjusting the pH of pool water Follow the link below
There is a product by HTH called PH Plus that will rise the PH content in your pool.
You can lower the PH level by using this stuff called PH Down. Go to a local pool store and ask about it.
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You would a pH testing kit from the pool supply company. If you get a meter you simply read it and then adjust the pool by adding the recommended chemicals until you have the proper pH. Using pH strips you match the color you get to a grid which shows what that color represents on the pH scale.
Just go to your local pool supply store and ask for pH adjusting chemicals.
You can still get in the pool. The chemicals work best when the pH is balanced so add PH PLUS. If the PH is really low it is very acidic and could burn the eyes a bit
Your Ph is probably out of whack it needs to be between pH 7.3 and 7.6 . If you do not have the equipment to test take a sample to your pool shop where they can do the check for you, and if you wish you can get test kits to do it your self. Keeping the pH of your pool correct will stop corrosion of pool equipment and aid in the effectiveness of pool disinfectants.
Your pool water turned green immediately after adding pH Plus because the chemical had increased the pH level to high. You may need to adjust the alkalinity levels of the water using another pool chemical such as pH Minus of pH Alkalinity Plus.