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Carmen WatsonAug 10, 2025
Why is the oil in my BUSCH Water Pump black?
- BBrian JohnsonAug 10, 2025
If the oil in your BUSCH Water Pump is black, it could be due to: * Extended oil change intervals: the oil change intervals are too long. * Defective inlet filter (if equipped): Replace the inlet filter. * Overheating: Refer to the troubleshooting steps for "The machine runs too hot".