Swishing Sound from Bosch Circulating Pump

Discussion in 'Vertical and Horizontal Loops' started by Ed Spicer, Aug 21, 2020.

  1. Ed Spicer

    Ed Spicer New Member

    Hello everyone, I am hearing a swishing sound from our ground loop Bosch circulating pump. The 3 ton unit seems to be working fine but I am concerned about the swishing sound. We have another 3 ton unit and there is no swishing sound from that circulating pump. Does the line need to be purged, if so, how difficult and costly is that?

    I welcome your thoughts and advise. Thank you, Ed
  2. waterpirate

    waterpirate Well-Known Member Industry Professional Forum Leader

    Hi and welcome!
    Do a simple pressure check on the loop. If it low try gooseing the pressure to eliminate swooshing noise.
  3. Ed Spicer

    Ed Spicer New Member

    Thank you! After reading other entries and other stuff on the net I was thinking that it might needed to be purged. I will have someone come in and check it out.

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