There is the possibility there is trash caught in the impeller that is causing noisy operation.Other than that, sometimes the pumps will run loud. Its usually a early sign of motor failure. Not much you can do there.I would recommend you order a new pump and have it at least on standby. And be prepared, Hoshi is proud of their parts and it shows in the price.In short, if theres nothing caught anywhere, let it roll til it dies and then replace it.
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There is the possibility there is trash caught in the impeller that is causing noisy operation.
Other than that, sometimes the pumps will run loud. Its usually a early sign of motor failure. Not much you can do there.
I would recommend you order a new pump and have it at least on standby. And be prepared, Hoshi is proud of their parts and it shows in the price.
In short, if theres nothing caught anywhere, let it roll til it dies and then replace it.