New solar water heater pump is noisy

[LandK]

Hi! We just replaced our solar water heater pump (Grundfos 115v, type up 15-16 SUSN Class F) with a new one (Grundfos also). The water heater is in a separate storage room and yet we can hear the pump all through our house. This wasn't the case with the old pump. It's a humming noise, nothing unusual, but just that we never noticed any noise from the old pump.

Could this have anything to do with the Water Company installing a new meter recently (without our knowledge) before we replaced this pump? (Water pressure issue damaging something?) Or is it just the pump itself?

We'd appreciate any suggestions! Thank you!

 

[Agile]

The water meter will not make any difference.

Some pumps are more noisy that others.

Tony

 

[LandK]

Update: I read on another forum about "bleeding" the pump and that seemed to help a bit. The noise isn't as loud now...still audible in parts of the house, but at least not the whole house.

Thank you for the reply!

 

[Agile]

I cannot imagine that you are getting much solar water heating this week!

Tony

 

[scoobydo123]

The past few years a water turbine would have been a sounder invest ment

 

[LandK]

Tony, we live in Hawaii. It's not sunny season, but today it is..after a very gloomy, cold, wet day yesterday.

 

[pipeslice]

Check with the guy who fitted the pump that he bled it and circulated the system through the fillng pump needed,if he didn`t theres still air in it which you can hear