So, I have a test kit from 2 years ago (came with the plastic case). Last year, I bought a bag of refill chemicals. When we stopped swimming in November, my BF put both into the garage - along with the unused chlorine. I live in Riverside and the summers are hot and the garage has no AC. I know the chlorine is ruined. That's easily replaced. But, will the test chemicals also be ruined? They were in a plastic bin in the garage along the wall that connects to the house. I know it takes about 2 weeks to get another bag of refill chemicals so, I don't want to start adding water until I know I have a usable test kit. Can anyone tell me if the refill chemicals (which haven't been opened), will be ruined for use this year? TIA.