I source the Ebay Kits that come with a Cast Impeller & single pattern drilled hub.
I do pumps DIY style and have never tried doing a Alum, I wonder what the added risks are given the delicate alum structure. As in Support could be WAY more critical of a softer metal structure?
Hum
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69 Los Z11
68 SS/RS 396/325
68 Los Z28
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