What will happen?

misguided · 02/25/2006, 02:32 PM

If i use a 3/4" bulkhead that does 350GPH and use a mag drive with 3/4" inlet and outlet that does 1300gph what will happen?

Dr. Chek · 02/25/2006, 04:39 PM

be more specific...
3/4" bulkhead is the overflow to the sump???
and the mag drive is the return? how high are you pumping it???
"Throw me a bone, I'm the boss, I need the info!"

Blown 346 · 02/25/2006, 05:14 PM

If the drain size is 3/4 and you use a 1300 GPH return pump you are going to have a tank that overflows since the drain cant handle 1300 GPH.
If that is the case you are going to have to get a bigger drain or drains. Two 1" drains will handle 1300GPH just fine. Otherwise you are going to have alot of water on the floor.

misguided · 02/25/2006, 09:14 PM

No there isnt a sump im using the pump for flow. So the 3/4" bulkhead will connect directly to the pump and directly to the return

misguided · 02/25/2006, 10:07 PM

^^^^

jjmg · 02/25/2006, 10:38 PM

Your using it as a closed loop? From the drain to the pump and back to the tank? What size is the pump inlet?

misguided · 02/25/2006, 11:33 PM

3/4"

jjmg · 02/25/2006, 11:44 PM

You may not get max flow if you plumb a 3/4 in drain to a 3/4 in return but it seems as if they made the inlet the same as the outlet for a reason, If it is a closed loop I think you'll be fine. I wouldn't exactly bet on 1300 gph though.

misguided · 02/26/2006, 11:20 AM

thanks What kind of flow would you suggest for a Fowlr 28 gallon hexagon?

02/25/2006, 02:32 PM	#1
misguided Registered Member Join Date: Feb 2006 Location: Grand Rapids Michigan Posts: 218	What will happen? If i use a 3/4" bulkhead that does 350GPH and use a mag drive with 3/4" inlet and outlet that does 1300gph what will happen?

02/25/2006, 04:39 PM	#2
Dr. Chek Registered Member Join Date: Apr 2005 Location: Warrenton, VA Posts: 373	be more specific... 3/4" bulkhead is the overflow to the sump??? and the mag drive is the return? how high are you pumping it??? "Throw me a bone, I'm the boss, I need the info!" __________________ -James Current Tank Info: 37 G, DIY stand/canopy, 10G Sump, 10G Fuge, Typhoon III, AquaC Urchin PS

02/25/2006, 05:14 PM	#3
Blown 346 Registered Member Join Date: Apr 2004 Location: Rockford, Illinois Posts: 6,596	If the drain size is 3/4 and you use a 1300 GPH return pump you are going to have a tank that overflows since the drain cant handle 1300 GPH. If that is the case you are going to have to get a bigger drain or drains. Two 1" drains will handle 1300GPH just fine. Otherwise you are going to have alot of water on the floor.

02/25/2006, 09:14 PM	#4
misguided Registered Member Join Date: Feb 2006 Location: Grand Rapids Michigan Posts: 218	No there isnt a sump im using the pump for flow. So the 3/4" bulkhead will connect directly to the pump and directly to the return

02/25/2006, 10:07 PM	#5
misguided Registered Member Join Date: Feb 2006 Location: Grand Rapids Michigan Posts: 218	^^^^

02/25/2006, 10:38 PM	#6
jjmg Registered Member Join Date: Jun 2003 Location: Pensacola, Fl Posts: 1,897	Your using it as a closed loop? From the drain to the pump and back to the tank? What size is the pump inlet?

02/25/2006, 11:33 PM	#7
misguided Registered Member Join Date: Feb 2006 Location: Grand Rapids Michigan Posts: 218	3/4"

02/25/2006, 11:44 PM	#8
jjmg Registered Member Join Date: Jun 2003 Location: Pensacola, Fl Posts: 1,897	You may not get max flow if you plumb a 3/4 in drain to a 3/4 in return but it seems as if they made the inlet the same as the outlet for a reason, If it is a closed loop I think you'll be fine. I wouldn't exactly bet on 1300 gph though.

02/26/2006, 11:20 AM	#9
misguided Registered Member Join Date: Feb 2006 Location: Grand Rapids Michigan Posts: 218	thanks What kind of flow would you suggest for a Fowlr 28 gallon hexagon?