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I'd go with the first one.ICE, where's the commentary? Looks like you maybe on a ladder looking at an HVAC job with a drain pan that's been cut out for a GAS line. Maybe it's a meth lab operation?
Okay so you are pretty sure that it may be a problem. Now we need to know absolutely, positively for sure250......I am pretty sure that the fireblock foam may be an issue with CPVC so watch out there....Look at blazemaster or Lubrizol's website (or flowguard) they are pretty specific as to what can touch CPVC...