Terri from northern Minnesota here! I have been a TFP member for quite awhile and have been using your methods in the past for chlorination etc! I changed emails and am unable to get into that one so I made a new acct again !! Pool isn’t open yet . Just posted my issue under above ground pools because my liner has slipped waay down . Hoping I can get something figured out ! 
Posted a pic of previous years with my pool 
Posted a pic of previous years with my pool 
