Yeah, I think your reagents are shot. I would order replacement for all of them--you can hold off on the calcium stuff because you don't need it with vinyl. If there is a Leslies nearby they usually stop most, but not all of the chems. You probably won't get the FAS/DPD reagents, nor a large bottle of R 13 (CYA reagent).
I store my test kits indoors winter and summer and rarely have a reagent failure.
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