replying to MNP, dengleColorado wrote:
Really a few years late to the party here, but have the same issue. I was
wondering if you found the solution? My shower backs up to a neighbors wall so
no access other than chipping away at the nice tiled shower? The pipes look to
be galvanized as well. How much would it hurt to put a few sprinkles of drano
crystals in there and let it sit for a very short time and see if this works?
Is this even advised?

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