kalk reactor apex programming

[lowbudget]

i want to have my kalk reactor to be running between 8.35 -8.50 ph
if ph it above 8.5 turn off kalk reactor and send email
if ph is below 8.35 email.

how would you program that on the apex

 

[Justkeepswimming]

Brs has a whole series on youtube for apex programming. Maybe that will help you out...