So i just got back from Leslies and they told me to put in some hardness plus into our pool. My question is: Is hardness plus really needed in a vinyl pool? I was of the understanding that it really isn't that vital, but i don't know. here are the numbers their test gave me:
Calcium Hardness: 150
I've already put in some chlorine and plan on baking soda for the Alkalinity tonight after i clean the filter. Do i need to put in the hardness plus?