Been thinking about my canister filter on my tank in the event of a poweroutage. Has anyone installed a airline split into the return line to pump air when power cuts out to act as a water lift? Considering the output does a 180 at the top and dives back down into the tank im not sure if any water would flow at all? I am simply looking at options to keep the filter from going totally anaerobic and keeping a trickle of water going.