What needs to be balanced before I SLAM?

[aces79]

I bought a TF100 test kit so I could SLAM to kill algae. My CYA was way too high though so I had drain and refill approximately 70% of my pool. Yes, I still have algae.

My water is mostly fresh and untreated now.

What do I need to balance, if anything, before I SLAM?

I will retest my CYA first after the pump runs for awhile.

 

[mknauss]

Run all the tests. Lower the pH to 7.2 and add chlorine to raise your FC to SLAM level for your CYA. Maintain that FC.

 

[aces79]

Run all the tests. Lower the pH to 7.2 and add chlorine to raise your FC to SLAM level for your CYA. Maintain that FC.

Does liquid chlorine raise CYA?

 

[mknauss]

Does liquid chlorine raise CYA?

No. Only dichlor, trichlor, and CYA (aka stabilizer/conditioner) add CYA to the pool water.