Steve,
I think I'm having the same problem (Low Recirc flow) with no floss only a "screen". My best guess, is I have lots of fine sediment mixed in the media. Thats what I found last time when I had to remove the floss. Now maybe I need to remove all the media and give it a rinse to keep only the large particles.
Or need a MAG5 pump to power through all this. I think an up flow would be much better than this design, but how to keep the pump primed??
Lee
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Need more time for the tank... Break a leg!
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