Thank you both...

I am using a kit that I bought from Leslie's the brand is taylor it has the ability to test TC,FCC,PH,ACID AND BASE DEMAND, TA, CA and CYA.

I tested my CYA and it is at 80.

The chlorine test does change to purple, I am adding 5 drops of the DPD reagent #1 and then adding reagent 2 immediately the color becomes purple which is darker than the color at 5 in the testing unit. How do I get proper reading on the chlorine level.

The pool has turned to worst from this morning and we are having a heat wave in the Northeast.

Your help is much appreciated.

Thank you