CYA test question

[waterbear]

I stand outdoors in the shade (indirect sunlight)....and I have double checked my readings againt a LaMotte Waterlink Express colorimeter and am within 10 ppm or less of the readings the colorimeter gets.

(The debate continues! Carl, do you still wear the tinfoil hat? I do!)

[oasisdave]

Thanx, I've been standing in shade also. guess I will continue to do so.

[CarlD]

Consistency is important. Tinfoil hat is optional.