I love reading your thread! I wish I had something useful to chime in with, but one of the forum limnologists are likely to have some useful knowledge. Water does so many interesting things as it goes through temperature changes. The key factor seems to be the density as modulated by temperature changes. What would push that dense 39 water from the bottom best. Seems muscle would count more than stamina (big pump/more water vs small pump over longer time). Very curious to hear what the water wizards have to say....


Better to shun the bait than struggle in the snare.
- William Blake