HI,

Finished pool late last summer/early fall, filled and closed shortly thereafter for the winter. (45 x 20 Gunite/marcite ~ 30,000 Gal) This is our first full season and these are my first tests with the PS234. Love the Kit! My readings are:

FC 1.5
CC 1.0
TC 2.5
PH 7.4
Alk 90
Cal 220
CYA ~35
Temp 66

I have a question about the CYA test. It states to hold the vial at waist level in outdoor light. I assume that you view the dot in the bottom looking straight down into the tube instead of diagonally through the side of the vial? I have added no stabilizer yet this year and am wondering if I performed the test correctly?

Also the pool store recommends that the alkalinity should be between 125-150. Is this correct? From what I've read, I thought 90 was ok.

Thanks in Advance,

Pat.