Many of the reagents will not go bad for a very long time. You can use what you have now. If they were not stored in extremes of heat or freezing conditions you should have no problems at all.
Hello , This thread has been inactive for over 60 days. New postings here are unlikely to be seen or responded to by other members. For better visibility, consider Starting A New Thread.
Welcome to TFP! For a wealth of pool care information please check out our free Pool School. If you are in need of specific help then we encourage you to Register and ask us here in the forum!