Welcome! Here are the website rules, as well as some tips for using this forum.
Need to contact us? Visit https://heatinghelp.com/contact-us/.
Click here to Find a Contractor in your area.

Odd copper fin BB piping

Timco Member Posts: 3,040
I have a zone with two supply and one return. All 1” copper. It used to have a single system pump on the return. Anyone see any harm in putting the pump on the supply side as I typically do or safer to pull from the single return? One supply goes to the front and one to the back of the house and the return goes down the middle of the house but all disappear into a finished room so I can’t follow the pipes. Thanks.
Just a guy running some pipes.


  • Ironman
    Ironman Member Posts: 7,350
    edited October 2019
    On the supply, "pumping away" from the PONPC.

    That's a split loop which is very common on larger series loop systems. It helps to even out the SWT to the BBs. There may be balancing cocks somewhere after the split.
    Bob Boan
    You can choose to do what you want, but you cannot choose the consequences.