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Grundfos Quality Issues
I had a Grundfos SP2A installed in 2003 that failed in 2007. The Grundfos agent advised us to try a larger pump, so we had them install an SP3A-33 in our 100m bore. The pump was designed to pump up to a tank on a hill, producing a total head of 160 m. While the water quality is fairly soft and suitable for stock and garden use, the pump has again failed.
Upon inspection, it was found that a weld had failed on one of the 3 straps, designed to hold the 33 stages together. A weld that attaches the drive hub to one of the 33 impellers also failed....The combined failures of these welds, has contributed to a failure of the drive shaft, between the motor and the pump. The pump has to be replaced. Grundfos failed to satisfactorily respond to the problem, simply offering a heap of unrelated excuses. It appears that Grundfos have quality and durability issues with their products. Several farmer's in our area have reported experiencing similar problems with Grundfos bore pumps. I would say that while they charge a premium price for a product, which they claim is very durable, this is not the case. A far cheaper pump costing a third of the price, that only lasts half the time, might be a better option.
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