Greetings to all...This is my first post in this forum and it goes as follows: I just acid/washed my IC-40 unit, due to pool store recommendation and "Low Salt" indicator (yellow light). Although there was some calcium build up, it wasn't much (pool was first opened in July 2009, and SWG started working in August). As I check the diagnostic screen in my easy Touch Unit, I noticed salt content is back to the same measurements (both pool store and test strips) but i see a "Check Flow/PCB" message. Does anyone what this is about?
thanks for your comments.