I have a 18x48 Ultra frame intex pool. I feel like my PH and Alkalinity is to low and I'm not sure if that will be a problem in the future. I'm using a Tf-100 testing kit. My PH is always 6.8 and the Alkalinity is 40. My chlorine is 3. Is this something I should try and higher on both? If so how to you advice I do that.