Water circulation w/o powerheads???

[limbssg]

Came across this article from Advanced Aquarist's Online Magazine.

It's a vey simple concept and will possibly eliminate dead spots in a tank. Beside a return pump, you may also use a powerful powerhead in the main tank or sump.

http://www.advancedaquarist.com/issues/sept2003/short.htm

Illustration by Kevin Carroll

[limbssg]

to prevent water backflow to the sump during a power blackout, I think it's better to use a powerhead situated in the main tank.

[marcvelous]

to prevent water backflow to the sump during a power blackout, I think it's better to use a powerhead situated in the main tank.

Erm.... I think the designer already catered to this problem. He's got one way valves, as well as ball valves installed to prevent back-flow and facilitate maintenance.

Don't think it'll really eliminate all dead spots as the placement of the water outlets are on the stop of the tank. You have to factor in rock placement. If have a mountain of rocks below, there's no way water flow will be efficient.

[limbssg]

I see only 2 gate valves and 2 unions in the design, don't have 'one way valves' and ball valves. Anyone care to confirm?

[blueheaven]

I think some of us here already has this design

Can those people review about it?

[decentkid]

the return pump has to be extremely powerful also...or else the current created will also be weak...so in the end might as well at powerheads in the tank

[rockfish]

Hi ppls,

i just did that for my tank on sunday..

the reason why i did that is becoz my tank is not very big .. so reducing current as my LPS are not opening due to too strong current.. and the corals i love all dun need strong current.

i'll take a pic to show wat i did ..

but i think for those who wants high current... this is not for u ..