ok i finally tested my swamp...i mean pool...with a dpd test

[Watermom]

Yep - As usual, Carl and I agree. That is what I also advised further up in the thread. Keep it simple. PH and FC first. Other stuff later.

(By the way Carl, I think fog80 meant to say that his cya <30 instead of >30 because further into his post he says he thinks he has none.)

Watermom

[CarlD]

No WONDER I was confused. In that case I would have about 3 or 4 floaters loaded with Tri-Chlor tabs set to the widest opening. They will push chlorine, CYA and lower pH all at once...PERFECT for what he needs.