they actually increase flow inside the tank by pulling water through the holes then pumping it back out. you can see this effect in the video link that was posted. IMO this is a great idea to increase overall circulation inside the tank.
( looks like you beat me to it vitz :) )
OK great thanks for the advice i just happen to have a extra filter that I'm not using that came with the tank.
Also i still want to use the power heads for circulation purposes and have seen some filter sponge attachments
that go on the intake of the power heads are these a good idea.
My...
Ok heres the dilemma i have a under gravel filter that runs on 2 power heads the filter has been in place for quite some time now and i am starting to doubt its filtering quality's.
I would like to remove the plates for the UGF and clean them out plus use a little less gravel in the tank in...
Yeah the holes would be fairly large so that the water would pour out instead of actually spraying from pressure.
Hmm...what if you had the bar sitting half in the water and the holes were drilled in the top of the bar causing the water to overflow out ( did that make sense )
tanker
Well I have a sump currently in the works and was thinking of having the return as a spray bar above the water line suctioned to the back of the tank that way you wouldn't siphon any water back to the sump via return lines.
thanks i won't be going acrylic due to budget and was thinking using some bins but know i have decided to build the sump from a used glass tank since i will be taking the center brace out. i'm not worried about having a overflow problem's and im not going to drill the tank either but thanks for...
just a update the sump is going to be much bigger i will take the center brace out of my stand and reinforce with 2X4's should be able to get a sump about 30 gallons so that will help allot
Just a thought but couldn't you add a one way valve to the return lines so that when you do have a siphon break the water would be stopped from returning to the sump ?