Pond Boss Forums POND CONSTRUCTION Building a dam siphon pipe value with aeration???

Here's my question.

If a pond is fully aerated - meaning the water is fully mixed - how valuable is a siphon pipe at that point?? If the water is fully mixed is the pond not discharging the same quality of water from an overflow as it would be from a bottom siphon pipe? Let's say the bottom water is still lower quality by some amount. Is the bottom water bad enough for a siphon to still be worth it? I am sure it ALL DEPENDs, but let's hear some opinions or see some data!!