The pump started making a loud buzzing noise. I completely disassembled it and soaked everything in vinegar (there were some CaCO3 deposits but not much.) Then I put everything back together, placed it in the sump, and plugged it in. Nothing happens. I have cleaned the pump once before and it worked.
How about an exploded diagram or photo of the pump/impeller so I know I put it all back together correctly? The RD pump is unusual as the pinwheel appears to be fixed to the shaft instead of the magnet. There are pieces and o-rings on either end of the impeller, do these engage with the housing? It seems that their orientation is important.
How about an exploded diagram or photo of the pump/impeller so I know I put it all back together correctly? The RD pump is unusual as the pinwheel appears to be fixed to the shaft instead of the magnet. There are pieces and o-rings on either end of the impeller, do these engage with the housing? It seems that their orientation is important.