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Weil-Mclain Manifold Retrofit

We have a customer that in early 2000's had new house built and they installed Weil-Mclain I believe it was called AlumiPex in the basement concrete floor and have a couple of their manifolds. One of them is cracked and I'm hearing they went out of production years ago. My supplier has quoted me new Roth manifolds but is unsure whether the existing fittings will thread onto the manifold. Looking for direction on best way to retrofit this situation before I tear into and then can't rehook the existing infloor piping properly. Ideas?


  • newagedawn
    newagedawn Member Posts: 586
    go check the pipe for diameter then check the roth
    "The bitter taste of a poor install lasts far longer than the JOY of the lowest price"
  • Steve Minnich
    Steve Minnich Member Posts: 2,758
    I regularly interchanged WM's Alumi-Pex fittings and what was then Wirsbo's PAP fittings back in the day. They weren't called MLC back then.
    Steve Minnich
    Minnich Hydronic Consulting & Design, LLC
    [email protected]