Terry
Hi, Since adding a heat pump the pool water pump seems to be more noisy. The pump motor and filters are in a large fiberglass enclosure with louvered vents at each end. Would it help to construct a small noise insulated cover to fit over the pump? Would this cause a heat problem for the electric motor? I envision a three sided cover made of thin plywood with a foam noise insulation inside. The electric motor would stick out of the open end.
The heat pump itself is not causing any objectional noise , it's just the water pump.   Thanks.  Terry.    
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Marcus Miller
Dear Terry:
Thank you for writing back to me. I have not heard of a situation like that but I guess it is possible if the water pump has to work a bit harder to push the water through another device. You can insulate the pump part as long as the motor part is outside in the air to keep it cool. but it has been my experience the motor part usually makes more noise than the pump part. Maybe something got past the strainer and is stuck in the impeller of the pump? Maybe the pump is going bad, bearings? Hard to say without looking, but under normal conditions it shouldn't be noisier.

Sincerely,
Marcus Miller, President
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