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sara75Aug 22, 2025
Why is the oil in my BUSCH RA 0255 D Water Pump black?
- PpetersthomasAug 22, 2025
If the oil in your BUSCH Water Pump is black, it could be due to oil change intervals being too long, in which case you should contact Busch to flush the machine. Another possibility is a defective inlet filter (optional), which should be replaced. Also, check if the machine is running too hot.