Quote:
Originally Posted by psychofunk
The D4 would be a step down in pump power and the iwaki would be one of those break the bank pumps. Then there is the matter of the single power it all or the dual create two loops question.
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Actually the D4 would be a small step up in terms of flow, very small.
The D4 does have the advantage that it uses a lot less power and can run off your psu. However, at $75 those benefits come at a steep price. If you go with the 6002 what flow you loose won't come at as high a price as with the TDX. Perhaps the pump you have now is adequate, if not you probably will need the Iwaki.