Replacing Poly with PEX without opening walls

[David B.]

I would like to replace my failing POLY with PEX all the way to the angle stop without opening walls. I have watched videos and googled it but I figure I would ask everyone to see what really works.

1/2 Poly
Interior Drywall
Most have 90 degree elbows in the wall

I have free access under the house so I can widen a whole to pull a 90 degree out.

Again, I would like to replace the poly inside my walls with PEX without opening the walls.

Ideas - what actually works?

Thank you.

 

[jtorm]

Are you wanting to keep them in the walls? You you can come straight up through the floor with straight stops. That is easiest but most of our customers prefer to keep them in the wall. You can cut out the old pipe and holesaw an 1-3/8 hole. Then fish new line up from below to hole. Stub out with 90 and Wappies or better yet a drop ear bend support screwed to sheetrock or some backing. We have done it both ways. I usually only do it in the more difficult to access Areas where its not just a simple drywall cut