Closed loop questions

HornetMech242 · 11/12/2007, 02:41 PM

I am using a dart on a OM 4 way. Each return form the four way is 1 inch. Each branch has two outputs that are .75" with locline that T's and has two nozzles. So the pump is putting out two branches at a time for a total of 4 .75" locline that Y's into two lines for a total of 8 nozzles, does this restrict the flow at all for the dart? And is this a good plan for the closed loop returns?

I also have not decided what to use on the returns coming up out of the sand in the front of the tank, any ideas? I will post some pics later. I want to have a SPS dominated tank so i want my flow to be as good as i can get it.

Chris

rigleautomotive · 11/12/2007, 02:46 PM

any plumbing creates head pressure and head loss from friction.it sound like a good design,but i am not sure what yoiu mean with the returns coming out of the sand

mg426 · 11/12/2007, 03:21 PM

Pics would be helpfull.

HornetMech242 · 11/13/2007, 02:13 PM

This si a closed loop and the pump intake is submerged so that cuts down on the head loss from what i was told. But here are the pics.

This one you can see the pipe running out from the back glass and the 1 inch pipe is reduced to .75" at the last second with threaded fittings so i can put locline or something else.

This photo you can see the one branch from the OM unit i already put locline fittings. There is a return like this on the other side of the tank. Both aim from the top front of the tank to the back.

This one is just a shot of the completed closed loop plumbing.

Do you think the use of those .75" locline fittings is going to cause too much restriction? And are those nozzles going to concentrate the flow to a small area?

Chris

11/12/2007, 02:41 PM	#1
HornetMech242 Premium Member Join Date: Dec 2005 Location: Amarillo, TX Posts: 786	Closed loop questions I am using a dart on a OM 4 way. Each return form the four way is 1 inch. Each branch has two outputs that are .75" with locline that T's and has two nozzles. So the pump is putting out two branches at a time for a total of 4 .75" locline that Y's into two lines for a total of 8 nozzles, does this restrict the flow at all for the dart? And is this a good plan for the closed loop returns? I also have not decided what to use on the returns coming up out of the sand in the front of the tank, any ideas? I will post some pics later. I want to have a SPS dominated tank so i want my flow to be as good as i can get it. Chris __________________ I didin't know, it's my first day... Current Tank Info: 120g AGA, 150 #'s fiji rock, DIY stand & canopy, 2 250 watt MH's 14000k on Ice Cap ballast's in Lumenbright reflectors, Mag 9.5 return pump, Dart pump with Oceans Motions closed loop, octopus DNW200 skimmer, GEO 618 Calcium reactor

11/12/2007, 02:46 PM	#2
rigleautomotive Premium Member Join Date: Sep 2004 Location: Northeast Pennsylvania Posts: 3,705	any plumbing creates head pressure and head loss from friction.it sound like a good design,but i am not sure what yoiu mean with the returns coming out of the sand __________________ Dan Rigle President, * Reef Conservation Society TOTM December 2010 Coral Magazine Sept/Oct 2012 Current Tank Info: 180 gal SPS dominated display, 3 X 250 watt Radiums , lumenarc III minis , with VHO actinics, ETS downdraft skimmers, closed loops and 2 Tunze 6105 & 7095 controller,DIY calcium reactors DIY custom built sumps,since 1992

11/12/2007, 03:21 PM	#3
mg426 Registered Member Join Date: Jan 2006 Location: maryland Posts: 6,923	Pics would be helpfull. __________________ I found a way to make a small fortune running a reef tank. Start with a large fortune. Unofficial President of the SEACLONE haters club Current Tank Info: 125 mixed reef 110 lbs LR, 1x250watt XM 20K MH 2x175watt XM 20K MH on Magetics 2X96 watt actinic PC, 220 watt VHO actinic, 30 gallon refugium, closed loop system powered by Sequence Dart MSX 200 skimmer 38 gallon sump, Oceansmotions squirt

11/13/2007, 02:13 PM	#4
HornetMech242 Premium Member Join Date: Dec 2005 Location: Amarillo, TX Posts: 786	This si a closed loop and the pump intake is submerged so that cuts down on the head loss from what i was told. But here are the pics. This one you can see the pipe running out from the back glass and the 1 inch pipe is reduced to .75" at the last second with threaded fittings so i can put locline or something else. This photo you can see the one branch from the OM unit i already put locline fittings. There is a return like this on the other side of the tank. Both aim from the top front of the tank to the back. This one is just a shot of the completed closed loop plumbing. Do you think the use of those .75" locline fittings is going to cause too much restriction? And are those nozzles going to concentrate the flow to a small area? Chris __________________ I didin't know, it's my first day... Current Tank Info: 120g AGA, 150 #'s fiji rock, DIY stand & canopy, 2 250 watt MH's 14000k on Ice Cap ballast's in Lumenbright reflectors, Mag 9.5 return pump, Dart pump with Oceans Motions closed loop, octopus DNW200 skimmer, GEO 618 Calcium reactor