I am new to pooling and have no idea about chemicals or quantities. So I used the aquachem 6 way test strip and plugged the results into their website. But what I don't understand is if my pH is low, why in the world would I go down? I have looked around the site here and would figure my pH needs to be say 7.2 or so. So if it's 6.8 or less according to the strip results wouldn't I go up? And we were planning on using baking soda to do so. Any advice here please!