Bidirectional tidal flow

[StirCrazy]

Originally Posted by golf nut

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

all that looked like was a ocean motion device with a common inlett and two outlets.

Steve

[golf nut]

Originally Posted by StirCrazy

all that looked like was a ocean motion device with a common inlett and two outlets.

Steve

Except is isn't, both the inlets and the outlets reverse to direct flow through the tank and also to be pulled out on the opposite end, each is aiding the other.

[golf nut]

This is one of a pair that were installed an a good sized tank in a public aquarium, these were equipped with proximity switches and then driven by a PLC, this would alternate flow as in the video but enable to turn the tank clockwise or anticlockwise when viewed from above, ideal in a through wall viewed tank.