My FC has just recently dropped below 10 so I have been monitoring it daily so I know when to turn my SWG back on. (For those of you who do not know, I shut it off due to an algae outbreak where shocking my pool took the FC up to 40. I have been letting it decline with the SWG off since)
So I checked the FC last night and it was at 7.5 so I decided to go ahead and turn on the SWG and it was set to 40%. My pump is currently running 10 hours a day (2 - 5 hour cycles with about 3 hours off time in between). Tonight I checked it again and the FC has gone up to 8.5.
My question is this... If my FC was 6 with 10 hour run time and the SWG set to 40% under normal winter conditions with no problems and water balanced correctly... then if I had to shock it thus shutting off the SWG and turned the unit back on when the FC dropped back down to 10.... which of the following would likely be true and best describe what would happen?
1) The FC continues to slowly fall until it hit 6 and then stay there
2) The FC will never get back down to 6 from 10 using the same 10 hour pump time and 40% SWG setting
3) The FC will climb from 10 and continue to move higher
4) The SWG % will have to be dropped until the FC is at the targeted 6, and then set the SWG back to 40%
5) None of the above (Please explain)
I ask this because this is my first time adjusting the SWG % and I just want to know how to do it properly and what to watch for... especially since I just turned it back on last night and my FC has already gone up 1.