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Discussion Starter #1
I am looking at a new 84x24x24 acrlic tank?
I want to do my best at a maintains free tank.
Auto water change and top off system.

I have read about a few great ideas for both on this form.
I am looking for advice on the location of the holes I have put in the tank.

I will have a All Glass sump size-4 that has two pvc inlets!
Will be looking to get a a large canister filter also.

This tank will be viewed from both sides so the holes would need to be
on the bottom or the short sides?

Would it be nice to have a SHORT overflow (to keep it quit)on one end
with two drain holes to the sump?

I was also thinking about a midtank drain hole?
and a midtank fill hole?

The diagrams of your pluming ? also helps alot
Great detailed Forum:smile:
 

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Inlet as low as you can get it, return as high as you can get it for the cannister. Sump setup to skim the surface, return at same height as cannister. Make sure you finish the holes to keep them from stress cracking. If you are viewing the tank like that it would be worthwhile to have 2 or 3 square center overflows installed in the tank, especially a 7 footer. Plumbing ideas/pics are in the links below.......DC
 

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Discussion Starter #3
Great stuff DC:icon_smil

The 2 center square overflow I have thought about?
Just concerned about hidding them were there not always seen?

After reading:eek:
To much info on this form.:help:



The inlet would be in the overflow box, Right?
I can exit the tank from the side So why make the overflow go to the bottom of the tank?
 

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If you are drilling you tank then you dont Need an over flow. The pipe going through the tank will replace it. Overflow Boxes are used if you do not have a drilled tank. I agree with DC Line to Canister low in the tank Return line High. The sump plumb the other way. To Sump High and return low in the tank. You can also do the return line in the Bottom of the tank but you will NEED check valves for If/when the power goes out.
Let us know what else you have questions about.

MAHA
 

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Discussion Starter #5
I thought the overflow would be good to skim (clean the surface)
and control the flow rate to the sump by the deapth ov the cut groves?
 
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