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  • Can you gain acces to this area from below...? Commented Jul 25, 2021 at 21:41
  • It would help if you'd tell us more about your home style and layout, along with the general plumbing situation. Commented Jul 25, 2021 at 22:19
  • @ThreePhaseEel - not without a lot of digging :) Commented Jul 26, 2021 at 0:50
  • @isherwood - It's a pretty basic 1 story house on a concrete slab in north east USA Commented Jul 26, 2021 at 0:50
  • 3
    It looks like there are two supply-return loops (hot + cold) with 3 branches that service some other things. Commented Jul 26, 2021 at 0:57