Bidirectional tidal flow

[MitchM]

It sounds like there is a design that would work from Oceans Motions, but since there are other suggestions coming up in this vendor forum I should probably continue this on my build thread.
I really appreciate everybody's suggestions so far!

Another issue I thought of is that as well as having the OM unit work, the pump supplying the OM unit would need to be synced to turn off and on at the correct time.