You can raise pH by aeration and that will NOT raise t/a.
Aeration can be done by a fountain, by splashing 12 year olds, by pointing the return(s) as the surface so the water ripples or bubbles.

Your chlorine is 0. This is never good. Add bleach or some form of chlorine immediately, up to shock level. I'd add a full gallon of bleach right now. That should get your FC up to the 10-12 range which is the shocking level for 0 CYA.

Carl