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recirc/PEX

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Kevin Coppinger
Kevin Coppinger Member Posts: 29
in THE MAIN WALL
I know that this subject has been broached here before I wanted to modify it. Pex on recirculating lines w/ pumps is a no no. Right? how about in a non pump situation. AKA a gravity recirc line? I ran across a situation like this today it was in a hotel. They used 3/4"polybutylene for about 100'. They liked the way it worked I was just wondering if they had a problem lurking....or if it is a good way to go...kpc

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  • Gregg Jackson
    Gregg Jackson Member Posts: 55
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    what were the reasons for not ....

    using pex on a recirc. with a pump?
  • kevin_5
    kevin_5 Member Posts: 308
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    Vanguard

    Used to say it was a no no. Now I think they've changed their tune. I don't believe Wirsbo ever said it was a no no. Kevin
  • Paul Pollets
    Paul Pollets Member Posts: 3,656
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    AquaPex

    AquaPex, or non-barrier Pex certified for potable water can be used for DHW recirc lines. No Problemo.

    To Learn More About This Contractor, Click Here to Visit Their Ad in "Find A Contractor"
  • Paul Rohrs_2
    Paul Rohrs_2 Member Posts: 171
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    Recirc

    Vanguard states in their installation instructions for potable non-barrier tube that it is not suitable for recirculation pumps. (Being a Wirsbo distributor), I wanted to know why and Wirsbo stated that is was due to the combination of Chlorine and temperature that it was not equal to Wirsbo's Aquapex.

    Film at Eleven,

    PR
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