I bumped on the FC to around 10 and tomorrow morning, the filter is being turned. Water is still clear, not cloudy. The liner does not feel slimy either. A few more days, and spots will be showing up. CC are registering "zero" I want the pool guy who installed the plumbing to turn the system on. In the event there is a leak, I do not wish to be blamed. Then again, he still needs to be paid, so this should not be a problem.You haven't been running your pump? Check your FC levels. Don't want that getting too low and have to do a SLAM!