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Home      Reply		Viewed: 231 -- Replies: 7
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Posted	Eheim Closed Loop
26-04-2006 19:05 by billysfc	Has anyone else seen these eheim set 1 outlets and set 2 spraybars, they are without a doubt the best thing since sliced bread for water circulation in a marine tank. Here I have two eheim 16/22mm suction outlets feeding two eheim 1250 pumps, the water is then returned to the tank with two 12/16mm set 2 spray bar kits. The beauty of these kits is that you can run them anywhere you wish. I have nine seperate spraybars at high, mid, low, front and rear of tank. The best thing is that I can totally control where the water goes and at what speed. The spray bars come in sections that can be pushed together to make a spray bar as long as you want or you can get elbows to take water flow to other areas of the tank that you wouldn't normally get to. You can also use spare suction outlet pieces that are not drilled as links to extend the pipe to put the drilled sections anywhere you want them. I've never been so impressed with a peice of kit and I've been in the hobby for a few years now. To set them up, I put various numbers of spray bar pieces together in the bath, to get an idea of how much flow I got from each drill hole, then I added or subtracted a piece until I had the right amount of flow for my needs. Then after deciding on five pieces for the right hand side of the tank, I put it together in the tank with four undrilled pieces as extentions to give me water flow across the top of the tank from the entry point at the rear, down the back with an elbow at the bottom taking the pipe along the back behind the rockwork with a spraybar spraying water behind the rocks, then elbowed towards the front of the tank with another spraybar in the rockwork, before finally elbowing upwards at the side of the tank to have two more spray bars spraying water towards the front of the tank, to tumble the water back over the rockwork. Since adding the first one and being so impressed, I bought another and did a similar thing to the other side of the tank. I now have no powerheads in the tank and as the pumps are external, they don't put unwanted heat into the water. I absolutely love them.
26-04-2006 19:08 by billysfc	I will post a few photos, as soon as I have resized them, the site won't let me add them as they are. But I have to collect my girlfriend from work so will have to do it when I get back, sorry for the delay.
26-04-2006 19:21 by billysfc	Ok here's the first showing the two pumps, the filter floss under the pumps is to stop vibration noises resonating up through the cabinet.
26-04-2006 19:24 by billysfc	Here's the second showing The inlets and outlets going into the tank.
26-04-2006 19:26 by billysfc	And here's the third showing the end of the five bar spraybar, sticking up out of the edge of the rockwork and aimed at the front of the glass. If any one wants to know more or see a better photo of the different pieces, respond to this post and I'll add some better photo's.
26-04-2006 19:37 by billysfc	I thought I'd give a better demonstration so here's a mock up on the floor, showing how versatile the kit is. You can see the inlet on the left and then you can see that you can take the pipe anywhere you like after that.
26-04-2006 22:32 by PAUL OWEN	wow this looks complicated,is there a modified/simplified plan of this in action,i thought the more i got into keeping fish,the more knowledge i acquired,things and setups would become simpler,how wrong can i be?
26-04-2006 22:53 by billysfc	Nowhere near as complicated as it seems, if you look at the photo of all the inlets and outlets it may look a little complicated, but that's a photo of three different systems, there are three outlets and three inlets. For the system I'm talking about you could just have two pipes, one inlet and one outlet. I have two closed loops on this tank and an external filter that's probably why it looks so complicated.

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