Bidirectional tidal flow

[golf nut]

Originally Posted by sphelps

If you had a common suction 2 valves would work. I think ideally to create the cross flow you need a suction on one side and the output on the other so in this case you would need 4, which is what I was talking about.

Here is a quick bad video, there are 8 holes drilled , 4 at either end of the tank for coverage, the lower holes are C/L feeds, the uppers are C/L returns, they are being switched by a common drum, when water enters top right it is being removed bottom left and vise verse, if you watch carefully you can see the pellets being drawn in from the bottom. the pellets are an injection molding pellet about the same specific gravity as water.

just one pump.


http://www.youtube.com/watch?v=XxlOvNN-OPE