After maybe 5 hours of use my new PMA1000 saltwater circulating
pump for the
salon A/C digested an impeller vane. I was surprised to see upon disassembly that this is a magnetic-coupled
pump. Well THAT explains why they're so darned expensive.....
But wait - there's more! Hard plastic impeller assembly is fused to a round ferrous magnet about 2 inches long.
Funny but the damn thing spins in a sea
water bath - maybe that explains why the 'spare' impeller I pulled from an old pump had rust all over the ferrous component. Why on earth would you design and intentionally expose plain old metal to the
water inside a sea
water pump?? Drives me crazy...
Excuse the rant.... Heads up to those who may have the same pumps installed aboard. Hard plastic impellers and metal-in-seawater... You just couldn't make these stories up.... And why in heaven's name do I need a mag coupling in a silly little A/C circ pump??
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