Drainage Question

nanoreef16g · 01/06/2012, 08:05 PM

Do 90 degree bends matter when it comes to drainage or only on a return? Due to space I will have two 90 degree bends on my drainage from my overflow. Is that a problem?

sirreal63 · 01/06/2012, 10:53 PM

Yes it does but there is no way to say if it will be a problem, we do not know how much water you will be pushing through it. :-)

nanoreef16g · 01/06/2012, 11:17 PM

Quote:

Originally Posted by sirreal63

Yes it does but there is no way to say if it will be a problem, we do not know how much water you will be pushing through it. :-)

Ok a few more details. It will be a 40 gallon tank with two 300 GPH overflows from gl*******s.com. They utilize one inch drains. I have one overflow going to a skimmer area and one to a fuge area. The fuge side is teed off so one side goes into the same drain line as the skimmer and the other goes through a ball valve into the fuge so less water pushes through the fuge area.

Main area of concern:

sirreal63 · 01/06/2012, 11:28 PM

What return pump? I would think if you kept it about 400 gph you would have no issues,

nanoreef16g · 01/06/2012, 11:29 PM

I was going to use a Mag 5 as a return.

active · 01/06/2012, 11:33 PM

90 deg bends tend to restrict i try and use 45 deg bends to keep things flowing smoother there is a formula that shows what each 90 restricts and what a 45 restricts and is a lot more restriction for a 90 then a 45 - i have since lost that info but i'm sure its out there on the net someplace

sirreal63 · 01/06/2012, 11:40 PM

The head loss and undersized piping will keep you from overpowering the returns. I don't forsee any problems. You would need 1-1/4" return piping to get the full 500 gph from the Mag minus head loss, everything should work just fine.

nanoreef16g · 01/06/2012, 11:45 PM

Thank you for the reply. That's good to hear, I threw together "Frankenpipe" from leftover parts from other builds.

sirreal63 · 01/06/2012, 11:49 PM

I understand that, I have 9 years of leftover stuff going into my current re-build.

01/06/2012, 08:05 PM	#1
nanoreef16g Registered Member Join Date: Dec 2005 Location: West Chester, PA/Newark, DE Posts: 1,294	Drainage Question Do 90 degree bends matter when it comes to drainage or only on a return? Due to space I will have two 90 degree bends on my drainage from my overflow. Is that a problem? __________________ Here's to swimmin' with bow-legged women!

01/06/2012, 10:53 PM	#2
sirreal63 Go Spurs Go!!! Join Date: Dec 2004 Location: Meadowlakes Texas Posts: 13,357	Yes it does but there is no way to say if it will be a problem, we do not know how much water you will be pushing through it. :-) __________________ Jack No One has ever been seriously injured by using the search function. Alcohol, Tobacco and Firearms should be a convenience store, not a government agency. Current Tank Info: Reefing the Pentagon.

01/06/2012, 11:28 PM	#4
sirreal63 Go Spurs Go!!! Join Date: Dec 2004 Location: Meadowlakes Texas Posts: 13,357	What return pump? I would think if you kept it about 400 gph you would have no issues, __________________ Jack No One has ever been seriously injured by using the search function. Alcohol, Tobacco and Firearms should be a convenience store, not a government agency. Current Tank Info: Reefing the Pentagon.

01/06/2012, 11:29 PM	#5
nanoreef16g Registered Member Join Date: Dec 2005 Location: West Chester, PA/Newark, DE Posts: 1,294	I was going to use a Mag 5 as a return. __________________ Here's to swimmin' with bow-legged women!

01/06/2012, 11:40 PM	#7
sirreal63 Go Spurs Go!!! Join Date: Dec 2004 Location: Meadowlakes Texas Posts: 13,357	The head loss and undersized piping will keep you from overpowering the returns. I don't forsee any problems. You would need 1-1/4" return piping to get the full 500 gph from the Mag minus head loss, everything should work just fine. __________________ Jack No One has ever been seriously injured by using the search function. Alcohol, Tobacco and Firearms should be a convenience store, not a government agency. Current Tank Info: Reefing the Pentagon.

01/06/2012, 11:33 PM	#6
active Registered Member Join Date: Jan 2012 Location: lake ariel pa Posts: 110	90 deg bends tend to restrict i try and use 45 deg bends to keep things flowing smoother there is a formula that shows what each 90 restricts and what a 45 restricts and is a lot more restriction for a 90 then a 45 - i have since lost that info but i'm sure its out there on the net someplace

01/06/2012, 11:45 PM	#8
nanoreef16g Registered Member Join Date: Dec 2005 Location: West Chester, PA/Newark, DE Posts: 1,294	Thank you for the reply. That's good to hear, I threw together "Frankenpipe" from leftover parts from other builds. __________________ Here's to swimmin' with bow-legged women!

01/06/2012, 11:49 PM	#9
sirreal63 Go Spurs Go!!! Join Date: Dec 2004 Location: Meadowlakes Texas Posts: 13,357	I understand that, I have 9 years of leftover stuff going into my current re-build. __________________ Jack No One has ever been seriously injured by using the search function. Alcohol, Tobacco and Firearms should be a convenience store, not a government agency. Current Tank Info: Reefing the Pentagon.

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