Head loss and return pumps

Patrikbc · 03/20/2011, 06:37 PM

I'm running a 125g tank with dual 1.5 overflows, a 30g sump, reef octopus skimmer and dual 1440 powerheads in the tank. My return is a corallife 1744 hy-drive. My sump is in the basement about 13 ft down and is tee'd at the pump with a couple of 90s . Does each return count as an additional 14 ft of head loss with it tee'd like that?? I'm continuously sucking water at the siphon hole in both corners and getting alot of micro bubbles.

James77 · 03/20/2011, 08:37 PM

No, the pump only sees the 14 feet total, but it would see restriction from the extra pipe lengths and their diameters. This calculator has options for multiple outlets. if you have all sorts of different widths pipe, just average it to something.

http://reefcentral.com/index.php/head-loss-calculator

Im not following you on the sucking at the siphon holes? What type of overflows do you use? Are they gurgling like a flushing toilet?

Patrikbc · 03/20/2011, 08:41 PM

No, the water level sits right at the drilled holes, maybe that's where it's supposed to be

Patrikbc · 03/23/2011, 05:42 AM

Problem solved, installed a 35g trigger elite sump w/ refugium. macro bubbles gone, now to work on a durso standpipe.

03/20/2011, 06:37 PM	#1
Patrikbc Registered Member Join Date: Mar 2011 Posts: 4	Head loss and return pumps I'm running a 125g tank with dual 1.5 overflows, a 30g sump, reef octopus skimmer and dual 1440 powerheads in the tank. My return is a corallife 1744 hy-drive. My sump is in the basement about 13 ft down and is tee'd at the pump with a couple of 90s . Does each return count as an additional 14 ft of head loss with it tee'd like that?? I'm continuously sucking water at the siphon hole in both corners and getting alot of micro bubbles. __________________ My greatest piece of knowledge is that I know virtually nothing.

03/20/2011, 08:37 PM	#2
James77 Registered Member Join Date: Aug 2005 Location: Rhode Island Posts: 8,158	No, the pump only sees the 14 feet total, but it would see restriction from the extra pipe lengths and their diameters. This calculator has options for multiple outlets. if you have all sorts of different widths pipe, just average it to something. http://reefcentral.com/index.php/head-loss-calculator Im not following you on the sucking at the siphon holes? What type of overflows do you use? Are they gurgling like a flushing toilet? __________________ Jim Current Tank Info: 120g Mixed Reef and 75g Freshwater

03/20/2011, 08:41 PM	#3
Patrikbc Registered Member Join Date: Mar 2011 Posts: 4	No, the water level sits right at the drilled holes, maybe that's where it's supposed to be __________________ My greatest piece of knowledge is that I know virtually nothing.

03/23/2011, 05:42 AM	#4
Patrikbc Registered Member Join Date: Mar 2011 Posts: 4	Problem solved, installed a 35g trigger elite sump w/ refugium. macro bubbles gone, now to work on a durso standpipe. __________________ My greatest piece of knowledge is that I know virtually nothing.

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