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Fish Tank Forum • View topic - What size and how many holes on Spraybar.
Page 1 of 1

What size and how many holes on Spraybar.

PostPosted: Fri Nov 09, 2012 1:54 pm
by Katfish
I am going to make a full length spray bar for my 6ft tank but unsure on how many holes I need and size to get a near even flow out of the holes.

The pipe is 15mm internal dia that I am going to use for the spray bar.

The pump supplying the spray bar is rated at 3400l/ph with a 16mm hose outlet.

Can anybody help ?

Re: What size and how many holes on Spraybar.

PostPosted: Fri Nov 09, 2012 2:08 pm
by superdart
I aim for a full but gentle flow from a spray bar so I drill the holes 6mm dia and about 70mm apart and adjust the angle to gently agitate the surface.

Re: What size and how many holes on Spraybar.

PostPosted: Fri Nov 09, 2012 2:57 pm
by Katfish
I am not looking for surface movement due to using co2 I am looking at pointing the holes down to give some movement to the plants etc.

Re: What size and how many holes on Spraybar.

PostPosted: Fri Nov 09, 2012 3:06 pm
by superdart

Re: What size and how many holes on Spraybar.

PostPosted: Fri Nov 09, 2012 4:14 pm
by Anita
Would there be water coming out of the holes for last 3 or 4 foot?

Re: What size and how many holes on Spraybar.

PostPosted: Fri Nov 09, 2012 8:20 pm
by Katfish
yes there will be.

But I have now done it I have put 3mm hole every 2" which worked out 34x3mm holes in the pipe.

It gives great flow out of every hole

Re: What size and how many holes on Spraybar.

PostPosted: Fri Nov 09, 2012 8:57 pm
by Anita
Good, I wondered whether the flow would have deteriorated by the time it reached the end.

Re: What size and how many holes on Spraybar.

PostPosted: Fri Nov 09, 2012 9:14 pm
by Katfish
yep seems to be working great I will give it a few days a see how it goes.

I have put up a picture of the filter I am using on this spray bar in my Journal thread.

Its a beast of a filter due to the mods I made to it