Hi......I have been following your methods since last year. I went on vacation for 1-1/2 weeks, instructed my son to read and apply chemicals as needed; however, when I returned, my pool is green.....here are my readings. Please let me know what I need to do to get back to blue and accurate readings. Thanks.
TC=8
pH=7.8
TA=90
CH=140
CYA=20
TC=8
pH=7.8
TA=90
CH=140
CYA=20