The last couple nights when I have gotten up in the morning I have no water pressure. I go check the pressure tank and it is empty. I check the breaker and it is not tripped, so I cycle it and I can hear the relays in the pump control box switch, but still no water. I thought maybe it was froze up, but I leave the breaker off for about 5 - 10 minutes, flip it back on and it works fine. This has only happened the last couple nights when it has gotten down to 0-10 degF. The pressure tank, pressure switch and control box are all located in my basement and the pump is a submersible located about 70 ft underground. The bladder, pressure switch and control box are all fairly new, within in a couple months.