Bidirectional tidal flow

[golf nut]

Originally Posted by StirCrazy

thats not going to give you a left/right flow though.. to get that you would need a 2 position index and the angle would be to shallow requiring a huge force to switch it. with 4 positions it will rotate 90 degrees each time the pump starts.

Steve

You are looking at a cross section, there are four ports, 2 are not used and the drum has a port all the way through, it all works fine.

I could do it with just a 2 port switch you just change the approach angle and make the shuttle longer.

Paul