Added CYA and pH took a dive...

[mariner09]

Can do, a couple of questions about that...

I use a Taylor K-2005 and when I do the TA test, I have a green sample and it tells me to add drops until it changes to red. Does the reading happen when it stops being green or when it becomes a true red? I think it's purple before it's red.

For CYA, the kit suggests to add the water + reagent combo until a black dot starts to disappear. Does that mean when it turns grey or cloudy or when it's gone?

Maybe I need to ask Taylor...

FC = 2.5
TC = 3
pH = 7.2
TA = 160
CH = 140
CYA = below 30

PS...Just reading one of Carl's posts tells me my CYA must be around 20 because the TA was 140 yesterday and it's 160 this morning...