Okay, today's readings:

FC 2.0
CC 0.5
Ph 7.2
Alk 110
CYA 60 x 2 = 120

Our house is on a well so tap water is well water. Do you think that has any affect on the CYA test when I use 50/50 tap/pool water? I have distilled water I could use if that makes a difference.