FAQ

Keyword：

There is noise from the pump. What should I do?

If abnormal noise is coming from the pump, the probable causes are as follows.
1) Damage to diaphragm and intake / exhaust valves: Exhaust sound louder than normal.
2) Deterioration / damage of bearing: periodic undulating noise / rattle metal sound.
3) Damage to internal parts: impact noise due to part interference.

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