FAS-DPD Testing for the colorblind

[waterbear]

Waterbear;

You need to work up an account of the calibration process that you can post everytime somebody starts dreaming about all-electronic testing.

Ben

And will you then pay for the psychonalysis I will need after dredging up repressed tramatic teenage memories after all these years?
Suffice to say it is an exercise in bordom, frustration, and tedium (and then you screw it up and have to do it over again!) Oh, did I add that the probes are delicate and they do need to be replaced from time to time, like when you accidently tap them against something (like the 3 beakers with the calibartion standards) and they break? I'd rather fill a vial with water, add a few drops of indicator, and look at the color. Much faster and easier. In my previous post I said that I have used them in salt water aquariums (and not for routine testing--I use a drop based pH test for that). I have NEVER used one in my pool!
Oh yeah, I forgot, the probes need to be stored wet or they become useless and need to be replaced!
Oh yeah, I forght, the probes wear out after a while and need to be replaced!
Oh yeah, I forgot, the buffers need to be mixed up fresh with deionized water (4-column) daily!
I could go one but it's just becoming too painful! I think I'll just curl up in a dark corner in a fetal position now.