New to this pool thing, I closed it, Did not cover it, So when do I hook it back up? It has been getting in the low 60s and the pool is turning into a green mess, I added chlorine but I would like to run the pump. This is Iowa so im sure there will be more days below freezing. I am not talking about opening it for swimming way to cold and no heater. The pool has risen to just over the bottom of the skimmer so, I am scared the skimmer is going to freeze. it has an 1/2 full jug of antifreeze, plus when i closed it I put antifreeze in the skimmer, my pretty clear water has turned into a pond . . . still have not even swam in it.