Ok guys...so I shocked my brand new pool for the first time last night. This morning I tested it and the free chlorine is through the roof at 10. All the other tests came back at the lowest possible reading. I'm very new to this and don't know if this is normal or not. How long will the FC stay up like that? I wasn't able to run the filter all night because of a thunder storm/tornado watch. I did turn it on this morning. Could that be it? And what do I do next with the chemicals?