I've asked PoolDoc to reply to your thread as he is more familiar with handling a pool where Yellowtrine has been added. Sit tight.

By the way, pH below 7.0 is not good. Readings below 7.0 are acidic and can damage your pool and equipment.

What kind of test kit do you have? He is going to want some current numbers to look at and not just that things are 'good.' (Test strips don't count --- we call them guess strips.)

Welcome to the Pool Forum.