pipe size from return pump to tank

latazyo · 08/31/2007, 12:56 PM

the return pump (mag9.5) has a 3/4" outlet

I thought I heard that I wanted larger diameter pipe from the pump to the tank

so if I did 1" would that be fine?

AZDesertRat · 08/31/2007, 01:24 PM

Yes. I use 1" on an OceanRunner 3500 which is comparable in size.

barbra · 08/31/2007, 01:27 PM

On Mag pumps the piping runs twice the size of the outlet. Don't die....you actually do need 1-1/2 piping on that.

The instructions actually say so if you look just below the chart on the second page of this instruction sheet for your pump:

http://www.dannermfg.com/infoS.asp#

Rouselb · 08/31/2007, 02:09 PM

rule of thumb with flow pumps, use the largest pipe you can fit. Pressure pumps are different.

Thinslis · 08/31/2007, 02:17 PM

Mag 9.5 3/4in output = 1.5in pipe. At Home Depot they actually have a threaded 3/4 to 1.5 adapter, its like they knew.... =)

latazyo · 08/31/2007, 02:21 PM

thanks for the heads up on the HD fitting thinslis

Thinslis · 08/31/2007, 02:24 PM

NP, I should know I just bought return plumbing for my Mag 9.5.. Umm.. Yesterday =) LOL

08/31/2007, 12:56 PM	#1
latazyo Registered Member Join Date: Feb 2003 Posts: 3,972	pipe size from return pump to tank the return pump (mag9.5) has a 3/4" outlet I thought I heard that I wanted larger diameter pipe from the pump to the tank so if I did 1" would that be fine? __________________ Friends dont let friends use HOB overflows.

08/31/2007, 02:09 PM	#4
Rouselb Registered Member Join Date: Nov 2006 Location: Detroit Michigan Posts: 1,238	rule of thumb with flow pumps, use the largest pipe you can fit. Pressure pumps are different. __________________ Larry Current Tank Info: 425g Mixed Reef, (6) Orphek LED mods, (4) MP60s, (2) Bubble King SM250 Skimmer, LMIII for Dose & ATO

08/31/2007, 02:17 PM	#5
Thinslis Registered Member Join Date: Dec 2006 Location: Madison, Ohio Posts: 1,658	Mag 9.5 3/4in output = 1.5in pipe. At Home Depot they actually have a threaded 3/4 to 1.5 adapter, its like they knew.... =) __________________ -B Current Tank Info: 40g breeder, ER-RS80, MP40w, 250w + 2xT5

08/31/2007, 02:21 PM	#6
latazyo Registered Member Join Date: Feb 2003 Posts: 3,972	thanks for the heads up on the HD fitting thinslis __________________ Friends dont let friends use HOB overflows.

08/31/2007, 02:24 PM	#7
Thinslis Registered Member Join Date: Dec 2006 Location: Madison, Ohio Posts: 1,658	NP, I should know I just bought return plumbing for my Mag 9.5.. Umm.. Yesterday =) LOL __________________ -B Current Tank Info: 40g breeder, ER-RS80, MP40w, 250w + 2xT5

08/31/2007, 01:24 PM	#2
AZDesertRat Moved On Join Date: Jan 2002 Location: NW Phoenix Posts: 16,621	Yes. I use 1" on an OceanRunner 3500 which is comparable in size.

08/31/2007, 01:27 PM	#3
barbra Registered Member Join Date: Nov 2006 Location: Va Beach, VA Posts: 1,408	On Mag pumps the piping runs twice the size of the outlet. Don't die....you actually do need 1-1/2 piping on that. The instructions actually say so if you look just below the chart on the second page of this instruction sheet for your pump: http://www.dannermfg.com/infoS.asp#