When filter pressure rises 20-25% over the clean pressure it is time to clean the filter. It looks like you have a sand filter so you would need to backwash.
If it's rising back up quicker than you think it should, you may have an underlying chemistry problem. Please post a full set of current test results from your K2006 testkit.
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!