Ok, to get passed the "knee", the pressure drop across the block should be at least 0.5 m H2O, which would result in a flow rate of at least 7 lpm, at which a "surplus" HC would drop 2 psi, which is about 1.4 meters.
Seeing that 1.9m is roughly 6 feet, at which point the Hydor 20 will do absolutely nothing... it's a no go.
Last edited by bigben2k; 03-20-2003 at 12:24 PM.
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