PO4 test kits - Hanna VS Salifert

[gregzz4]

Originally Posted by Ryanerickson

Difference for me was lower results with your method to me it looks like the powder mixes better with the longer time frame to work with it .

Mhmm
I'm sure Hanna has a reason for the 3 minutes, but who am I to question it?
I think I'll stick with the Mfg methods
Sorry Mindy. I trust and love all your input/insight/knowledge - it's priceless. But in this case, nah