1073.020 or 1073.040?

[smatter]

I'm using a special eductor nozzle on my tank that creates a random flow pattern through a helix of channels. The sweet spot to get the most randomized effect is 300-450gph. I'm currently using an Eheim Compact+ 2000. By my calculations I think I might be getting close to 200gph with 40" of head and a couple of elbows. Which pump would you suggest to get me to the lower end of the sweet spot?

 

[rvitko]

The difficulty is in figuring head loss to the eductor, a 1073.050 would do around 550gph at 4ft of head, so it is a safe bet especially since you can adjust the speed. 1073.040 does around 450 and has a mechanical flow adjustment.

 

[smatter]

I figured the .020 wasn't even in the running. Like you I prefer slow flow through the sump. On this particular tank however the return coupled with the random flow eductor is the sole source of flow. It's a small REEFER Nano system housing LPS. The 9004 should be unaffected by the increased flow as it is in the 9004.500

 

[rvitko]

Yeah, at 4ft the 02 only does around 250gph, it drops off fast for head pressure and is better suited to running reactors.

 

[rishma]

I figured the .020 wasn't even in the running. Like you I prefer slow flow through the sump. On this particular tank however the return coupled with the random flow eductor is the sole source of flow. It's a small REEFER Nano system housing LPS. The 9004 should be unaffected by the increased flow as it is in the 9004.500

How did you get the 9004 into the sump? I have the reefer 170 and I was unable to use my 9004 because the sump water depth was too shallow.

 

[rvitko]

He is using the new sump kit version, basically a 9004 inside a body about like a 9410 body with a small feed pump, 9404.500 is the canister and pump, 9404 is the complete set with skimmer. The drawback is you need almost the room a 9410 takes up.

 

[smatter]

The container works really well and fits in the REEFER Nano sump with room to spare. I'm not using the sock currently as bubbles escaping aren't an issue and I don't need additional mechanical filtration. I find the 9004 perfectly sized for the Nano. I get very consistent foam production without the fluctuations I had experienced before with larger skimmers.