Water movement takes step forward

[DJ88]

Alan,

Do a search for Ocean currents on RC. you'll find out all kinds of stuff.

They do require a high GPH pump and have a tendancy of not working after a whort period of time from what I have read. I had looked into them a while ago. Take a read and decide for yourself tho.

Tony,

I wonder how the pump will fare in the long run in such an idea. Since we're now not moving an impeller, but a propeller, the weight of the water displaced is different than intended, etc. etc.

<font size="2" face="Verdana, Helvetica, sans-serif">These are a few of the things I was thinking about last night. Once concern of mine was keeping the magnetic part of the impellor inside the housing. But once the pump turns on the back force of the prop will keep it in.

As for wear you may find more due to the propellor will force the shaft back into the pump instead of it just rotating and forcing water out in the direction of the impellor rotation.

Another thing is that you will have to buy specific pumps. If I remember right not all mag pumps will always rotate in the same direction once you start it up. So if it decided to work in the opposite direction you'd be sucking things in.

YOu'd definately want to have something like this in a larger tank IMO. Once you start getting the housing and such overtop of a powerhead it's getting BIG. I may try making one out of a spare mini jet tho. See what happens. You don't really need the whole enclosure. Just a shroud around the propellor. Ships use this design all the time.

If you hadn't noticed my mind is going nuts on this idea.. lol.