Last couple of days/nights the temp has been below 25. Last night it dropped into the single digits causing the pool to ice over completely. The pump is still running but the skimmer is running low on water. Normally it doesn't freeze like this here(dallas area) so usually i just run the pump as needed. Currently it's 12 degrees with a windchill of -3. Is there any other steps i can take right now to prevent damage to the pump and sand filter?