Hi. Random plumbing question. If there is a leak in a copper pipe, can you
use solder, by process of sweating, and fill in the leak, or would it be
best to cut out the leak and sweat in a coupler (union)?
They do sell "pipe patches" which are rubber lined metal clamps with
tightening screws which can be snugged down over a small leak in a pipe
- if there's room, like it's not right next to a fitting.
But, like another poster has already told you, if the pipe corroded
through from the inside, chances are any "patch" you use will at best be
a temporary fix, corrosion rarely attacks at just one place.
I once improvised a patch for a pinhole leak in hard drawn copper
tubing by using a hose clamp and a tire patch. It held for
several years until I had enough other jobs lined up to get a
plumber in to replace the damaged piece of tubing.
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