I'm in zone 9A in SE Texas and we do get a few days of pretty good freezes. However, normally, we don't stay in the "freezing" temps for more than a few hours. But last year we were under 32F for at least 24-30 hours. I have two fountain pumps. One is in a pretty shallow reservoir... maybe 4-6 inches in a bird bath. I'm pretty sure I should remove this "shallow" pump when we're expecting those kind of temps. But the other one is in 2 foot of water. Should I also remove it when there's a threat of freezing temps? And if/when removed... do I need to store it indoors or would it be okay to leave undercover near the "pond" so it would be easy to place back in during spells of warmer weather?