this is the glass overflow im on about/will it work???

[buleetu]

this is the glass overflow im talking about, i dont know if its called a weir or an overflow chamber

any way do u think its big enough?

is it at the right angle?

will i have 2 ends or use just one and the side of the tank as the other?

im using a durso stand pipe made from 32mm hard pipe and 16 mm eheim flexi for the return, the return pump is an ocean runner 2500,

will the box be big enough to take the flow of the 2500??
its 120mm across and 100 mm high

 

[Anonymous]

How much flow are you going to push over it? It *look* too shallow if you have issue with bubble/noise if the flow is too high. I would get the slant more vertical, and use a wider piece on the bottom. You may have to redo it once or twide with fresh water to make sure the pump can work well with it.

 

[buleetu]

the ones i have now are 120mm x 100mm, the bottom peice is 30mm by 120mm, im using an ocean runner 2500 for the return with 16mm eheim flexi, the stand pipe is made from 32mm hard piping

could u give me some measurements of what ur suggesting

 

[Anonymous]

tough... most of us just do it by trial and error.

How many GPM is the OR 2500 do at the head pressure you are going to use? That should give us a ball park figure to how much the overflow needs to handle. It may work the way you set up, BTW, so don't be too concern about my initial comment.

 

[buleetu]

the or2500 does 1500 gph at a head of 1.5m so maybe it really does 1000gph, does it matter what size the weir is anyway because the water will just flow down anyway wont it, or could the tank fill quicker than the overflow can drain it out and flood the floor

 

[Anonymous]

The wider the weir, the less water per inch it has to handle, and it does affect how much splashing will be going on as it slide down the side. If the weir is too narrow, it can be a bit noisy, but that depends on the spacing and size of the slots/teeth.

 

[buleetu]

when u say wider do u mean the sloping bit and the distance form the top of it to the back of the tank??? or do u mean from left to right

 

[Anonymous]

The total width of the water fall as the water spill over the weir.