Our temps are now in the upper 50s and are predicted to stay temperate for a week or more, so I should have time to do some poking around. I may also call some landscape companies and ask what they recommend for water features in my area. I think our frost-free faucets are 5' and we usually bury them 2-3' down. Not sure exactly how deep my pond is, probably should have measured that at some point but it's full of rocks now.