Also STOP with the baking soda--your T/A at 150 is OK for a vinyl pool, but you cannot use soda ash to raise your pH now.

Why didn't you read the directions we provide here in our stickied threads? Now you have to deal with too high T/A and too low pH simultaneously. We NEVER recommend using baking soda for anything but raising T/A. Plus, if you are using Soda Ash to raise pH, you don't use baking soda for the T/A.

I suggest AGAIN that you drain half your water and refill to give you a fighting chance on CYA, T/A and pH which are all out of whack. And you cannot use your tri-chlor pucks now.