Spring Weather Giving me Headaches

Ive had an incident or two my Kalk too. I know I probably shouldnt saturate my ATO with it but its easy and inexpensive. On one occassion I did have my ATO get stuck open. Result? PH off the charts and ALK nearly off the charts. I managed to catch it within 4 hours of happening and saved everything. Talk about a heart attack. I am seriously considering the Reefkeeper lite just so I can dose Cal and Alk. I think this would give me some peace of mind and I wont have to worry about the weather changes, the air conditioner going out, the humidity controller on the furnace, etc etc etc. I would love to hear from some people with experience on this.