Slotted Intake set up for filter Intake Flow Questions

[garvin123g]

I currently have 2 2.5" PVC pipes with a 3/4 inch slot cut down the length and placed in the tank horizontally 1 at the surface, the second at about 6 " from top of sub-strait. Both running so the slot runs almost the length of the tank along the back wall This is plumbed as the Intake to my overflow filter set up. 1" PVC DIY

Both "Draw pretty well into the overflow and filter .. Note the Over flow is plumbed thru the back of the tank wall at about at the top of the sub-strait. I have tested this when adding Super Malachite Green F to the tank. I alwas do that when adding new fish even after a good quarentine period "just to be sure"

I am beginning to regret the 2.5" size of the intake pipes. They are large and a bit of an Eye sore... one at the top is kinda ok not as noticeable.. But the lower one is not easy to "Disguise"


My Question. If I revert from the 2.5" PVC and use 1 " or 1.5 " with a 1/2 or so slot cut in them (length of the pipe) will I still have good flow? Considering that the overflow pipe itself is only a 1" So that limits the flow , Right?

Thanks in advance. I think the results will be the same flow from either the 2.5" or the 1" as the restrcked part is the 1" thru the tank back into the filter.

 

[garvin123g]

Maybe this will clearafy things a bit

View attachment 564271


Top PVC sits at or just below Normal water line
Acting like a skimmer

Bottom horizontal PVC sets 5~6 inches above sub strait


I just wonder what difference in flow thru it would make if I reduces the size of Horizontal PVC from2.5" to 1" or 1.5 inch

as the whole thing is plumbed thru a 1" pipe to the sump filter box

Would sure appreciate some feedback
gb

 

[ar0wan]

if the plumbing is all 1" outside the tank
you should see no difference reducing the horizontal to 1" also

also this is a very huge intake design
consider this as an alternative

 

[Aqua Doctor]

Should be fine...

 

[garvin123g]

if the plumbing is all 1" outside the tank
you should see no difference reducing the horizontal to 1" also

also this is a very huge intake design
consider this as an alternative

Thanks arOwan. I will google Durso Over Flow and look in to it.
I like the fact that my slotted PVC runs almost the entire length of the tank at 2 levels, but the 2.5" pipes are not that easy to hide

So switching to the 1" will not reduce efficiency and look better / be easier to hide That is all good news to me!

That is what I will do.
Thanks again

 

[garvin123g]

Should be fine...

Thanks Aqua Dr. I was Thinking it would not make a difference and it is good to have those thoughts concurred.

Thanks
GB