Anyone of you ever tap threads onto riser feeds that are in place......
Option A: Not the Preferred Option just due to where the starting height would be.
Put Female Copper Adapter and start fresh from the high height of where I would adapt to....
Option B: Risers in wall of 2nd floor.
Cut brass risers to preferred height of starting point
Tap threads on risers while holding the pipe with a pipe wrench
Hope the *torque* produced does not affect anything downstream
I have done tons of theading on the vise, but never with pipe in *place* in the walls - all willy nilly in the air
Last edited by chefwong; 11-14-2013 at 06:20 PM.
TEchnically, you are using a "thread die" not a "tap", and any plumber has threaded pipes in place at some time in their life. Not an easy task if you are doing it "by hand".
Licensed residential and commercial plumber