So I changed out my underperforming summer loop pump, it was sort of moving fluid but not enough to keep up with hot water demand. I took the old one apart just to see how the inside was made but found the problem too- the impeller vanes were chock full of blue powdery crud. The coolant looks and tests fine and ITR didn't know where it could have come from. I suspect corrosion of some type but never seen it happen in navy blue.
Has anyone else seen this?
__________________ 2021 Newmar Super Star 4051, Glacier Interior + Exterior
2021 Bravo Silver Star 24'
2015 Genesis G80 Ultimate, Caspian Black
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What brand & color is the boiler fluid you're using in your oasis? Have you or a service shop added Oasis fluid to the reservoir by chance?
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