Another DIY Skimmer Thread Question

4374 Views 60 Replies 5 Participants Last post by OneDummHikk, Mar 17, 2009

Alittlefishy

Discussion Starter · Mar 2, 2009

I've been looking though the threads, and am really turned on by this recirculating skimmer:

I've seen the basic design several times, so I am assuming that this works pretty well. I want to know if my feeding/pump would work, or should I use something different. The tank I have is not drilled, so I have a HOB overflow rated at 300gph that I would use to feed the skimmer. The pump that I already have is a Resun 225NW from my Octo HOB. I would meshmod the pump for finer bubbles, but has been a good pump so far. I'm planning on this being an external skimmer with the effluent draining into a sump so that all my overflow water gets skimmed. I currently have a 55, but will have to wait on my large upgrade to the 125 in favor of a 75 with the 55 as the sump. Will this work??? Will this work well??? More flow from my overflow, or bigger pump needed? It seems like I should be close according to info from here. http://www.hawkfish.org/snailman/skimmer101.htm

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Jadinop

· #17 · Mar 3, 2009

Just another pump suggestion. Mag drives are available with needlewheels and venturis now. Haven't seen one in opertaion yet though.
http://www.premiumaquatics.com/Merc...PROD&Product_Code=MAG-06010&Category_Code=MAG

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Jadinop

· #32 · Mar 5, 2009

Needlewheel found. Now the question is does the same volute fit both.
http://www.customaquatic.com/estore/control/product/~product=PS-DM16775

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Jadinop

· #50 · Mar 7, 2009

With a recirc skimmer the depth of water affects performance but IME it is not affected by small changes in water levels like a non-recirc skimmer can be. I run one of my G3's recirc'd and since I don't have my ATO running yet the sump water level varys slightly by an inch or two, maybe even 3" sometimes. A recirc skimmer is not as sensitve to the small variations in sump water levels and maintains the same internal water level regardless.

In a recirc skimmer, I would say that water level is a determining performance factor but it's just not as important in maintaining consistent performance like it is on other types of skimmers.

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