Return pump plumbing

BBain · 08/29/2006, 11:23 AM

Hello to all. i was wondering if i should go with 1/2" or 3/4" PVC on my mag 7. I am wanting to make 2 spray outlets, one on each side to help with overall movement on the sandbed. any opinions??

Thanks!
B

eckrynock · 08/29/2006, 11:29 AM

3/4". Especially if you want to have two outlets.

RichConley · 08/29/2006, 01:21 PM

1", or 1.5" if you can. Dont reduce to the smaller size until you absolutely have to. The bigger plumbing will give you MUCH more flow.

With 1/2" plumbing you'll be lucky if you get 200gph total out of that pump

BBain · 08/29/2006, 01:52 PM

so if i go from 1/2" (outlet) and increase to 1" then decrease to 3/4" dual lockline. would that work??

RichConley · 08/29/2006, 03:08 PM

Yup, what you're trying to do is decrease the velocity of the water in the pipe (to reduce friction) and then increase the velocity back at the lockline.

I really wish Danner would start putting 1" outputs on all their smaller pumps. Especially when thats what they reccomend you run them on.

WarrenG · 08/29/2006, 04:17 PM

I use a Mag7 pump that sends the water up a 3/4" pipe vertically about 15" into the base of a Lifeguard UV, goes up about 20 more inches through that, and then another 40" through 1" pipe that terminates with a 3/4" Loc-line nozzle into the tank. I can see that water (bubbles) moving in the tank at least 25" from where it enters the surface.

sjm817 · 08/29/2006, 04:53 PM

Rule of thumb for a Mag is double the outlet size. 1" for a Mag7.

BBain · 08/29/2006, 09:18 PM

Hey thanks everyone!! I am going to go 1" into 3/4" split into 2 3/4" LocLines about 20" apart. I really do appreciate the help!!
B

08/29/2006, 11:23 AM	#1
BBain Registered Member Join Date: Aug 2006 Location: St Joseph, MO Posts: 24	Return pump plumbing Hello to all. i was wondering if i should go with 1/2" or 3/4" PVC on my mag 7. I am wanting to make 2 spray outlets, one on each side to help with overall movement on the sandbed. any opinions?? Thanks! B

08/29/2006, 11:29 AM	#2
eckrynock Premium Member Join Date: Apr 2005 Location: Indianapolis Posts: 733	3/4". Especially if you want to have two outlets. __________________ Ed Genesis 1:21 Current Tank Info: 90 gal

08/29/2006, 01:21 PM	#3
RichConley Registered Member Join Date: Sep 2004 Location: Bostonian in Chicago going to DC Posts: 9,908	1", or 1.5" if you can. Dont reduce to the smaller size until you absolutely have to. The bigger plumbing will give you MUCH more flow. With 1/2" plumbing you'll be lucky if you get 200gph total out of that pump __________________ NO TANKS!!!

08/29/2006, 03:08 PM	#5
RichConley Registered Member Join Date: Sep 2004 Location: Bostonian in Chicago going to DC Posts: 9,908	Yup, what you're trying to do is decrease the velocity of the water in the pipe (to reduce friction) and then increase the velocity back at the lockline. I really wish Danner would start putting 1" outputs on all their smaller pumps. Especially when thats what they reccomend you run them on. __________________ NO TANKS!!!

08/29/2006, 04:53 PM	#7
sjm817 On Yer left! Join Date: Sep 2004 Location: Northern VA Posts: 18,777	Rule of thumb for a Mag is double the outlet size. 1" for a Mag7. __________________ - Scott

08/29/2006, 01:52 PM	#4
BBain Registered Member Join Date: Aug 2006 Location: St Joseph, MO Posts: 24	so if i go from 1/2" (outlet) and increase to 1" then decrease to 3/4" dual lockline. would that work??

08/29/2006, 04:17 PM	#6
WarrenG Registered Member Join Date: Jun 2003 Location: Sunnyvale, CA Posts: 738	I use a Mag7 pump that sends the water up a 3/4" pipe vertically about 15" into the base of a Lifeguard UV, goes up about 20 more inches through that, and then another 40" through 1" pipe that terminates with a 3/4" Loc-line nozzle into the tank. I can see that water (bubbles) moving in the tank at least 25" from where it enters the surface.

08/29/2006, 09:18 PM	#8
BBain Registered Member Join Date: Aug 2006 Location: St Joseph, MO Posts: 24	Hey thanks everyone!! I am going to go 1" into 3/4" split into 2 3/4" LocLines about 20" apart. I really do appreciate the help!! B