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Old 10-08-2018, 00:42   #1
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Join Date: Jan 2009
Location: Second circumnavigation
Boat: Lightwave 45 catamaran
Posts: 24
Spectra vane pump trying to explode.

Catalina spectra water maker runs well making water for about 5 minutes. Then the vane pump goes quiter but all outputs ok but 10% less of product water flow. Then the vane pump starts vibrating and shaking like it is going to explode or rip itself off the bulkhead. I then shut it down as I donít want to know the conclusion if I let it keep going. Why is it so? I have changed filters to no effect and there are no alarms on my MPC controller.
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Old 11-08-2018, 22:19   #2
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Join Date: Jan 2009
Location: Second circumnavigation
Boat: Lightwave 45 catamaran
Posts: 24
Re: Spectra vane pump trying to explode.

Turns out it was a problem with the brushes. I made up some plastic blocks to put between brushes and tension spring and it is running smoothly now.
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