closed loop ideas without drilling?

[rocketeer]

Here's my version of a no-holes closed loop on a 240 gal. The vertical gray 1 1/2 inch dia pipe to the left is the intake. There are two of them. The other is on the other side of the overflow. The slots are cut so that they have surface area totaling twice the cross section area of the 1 1/2 inch pipe. They feed a Dart through a 2 inch pipe. The dart feeds the four way on top. each port on the four way feeds two 1 inch dia. returns (8 returns). The small tube at the top of the intakes, with the valve in it, is so I can suck out the air and start a syphon.

I originally had four holes in the side of the tank for intakes, but the side cracked. I had to replace the side.

Jack

[BA]

hey on a 375 what are some suggestions for the pump size? its just a FOWLR but i want some good flow for my angel and tangs with no powerheads in the tank

[rz1a]

any larger pumps than that? since closed loop will be my flow, i was thinking of a pump that would deliver a lot of flow

i was going to go with 2 tunze 6080s that push out 2,250 gph

[rz1a]

would a http://www.marinedepot.com/ps_ViewIt...ct~DP7565.html dolphin pump be something to look into? i was hoping to split the line 4 ways, but if i do two outlets ill go with something like the hammerhead? http://www.marinedepot.com/ps_ViewIt...158~tab~1.html

[rz1a]

Here's my version of a no-holes closed loop on a 240 gal. The vertical gray 1 1/2 inch dia pipe to the left is the intake. There are two of them. The other is on the other side of the overflow. The slots are cut so that they have surface area totaling twice the cross section area of the 1 1/2 inch pipe. They feed a Dart through a 2 inch pipe. The dart feeds the four way on top. each port on the four way feeds two 1 inch dia. returns (8 returns). The small tube at the top of the intakes, with the valve in it, is so I can suck out the air and start a syphon.

I originally had four holes in the side of the tank for intakes, but the side cracked. I had to replace the side.

Jack

jack, is that the oceans motions 4-way?

[rocketeer]

Yeah, The Reeflo Dart can pump 3600 GPH with no head and the valve is the big one. I still wish I had more flow. It's quiet though.

Jack