I'm only 2 weeks into pool ownership. Been testing with my TF-100 daily. FC is hovering around 3-5, Ph 7.2, TA 110, and CYA was 0, but after 1lb of stabilizer, just checked in at 30. I'm getting lime yellow/green growth in the corners of my sitting area and steps and it's building on the sides and on some of the water returns. I just brushed the pool a few days ago. Do I need to shock? Scrub more? First time dealing with algae on the gunite. Water looks great though.