Re: Removing or Melting Lead From Cast Iron Pipe (Tub Drain)
Posted by LonnythePlumber on July 05, 2004 at 22:42:33:
In response to Re: Removing or Melting Lead From Cast Iron Pipe (Tub Drain)
: Hello all,

: I need to remove lead from a cast iron drain pipe that my old tub was connected to. A propane tourch just doesn't seem to be getting the lead hot enough to melt and a chisel doesn't seem to be doing the trick either. Any advice from someone experienced at this would be very helpful.

: Thanks in advance,
: Sean

A better replacement is to cut the cast iron pipe back close to the stack. Leave a couple of inches to reattach a no-hub clamp and dig out the residue in the remaining cast iron before re-running your drain pipe. You may need to grind off the CI lettering to get a smooth connection.
A pencil torch with just regular propane will melt off the solder that is around the brass and lead pipe connection. I did this for two decades before moving to mapp and a swivel tip. Make sure you dig out all the old lead from inside the tub pipe if you continue this method.
LonnythePlumber




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