Hello guys :) I would like to ask a question regarding dirty water & centrifugal pumps. I have recently started working in filtration company and we test the filtration efficiency of our filters using water mixed with test dust. The test dust has particle size range from 1 to 100 micron. The centrifugal pump takes the clean water from a reservoir and pumps it into the system. After that a dosing pump injects slurry (test dust in water) into the water pumped by the main pump and it then passes through the test filter. It is a closed loop and and in normal circumstances the dirty water is filtered again before it goes back into the main reservoir. In other words the centrifugal pump doesn't come in contact with dirty water. However for another experiment I need to recirculate the dirty water and present it again to the test filter. I wonder if feeding the main centrifugal pump with dirty water will cause any damage? Could someone give some information about that?
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