Cut a board to the wall and prop it straight mount your flange and backfill the water plug hydraulic cement. Within 5 minutes it will turn solid give it a days rest adjust your flange slots off the wall to center and tapcon the puppy to the floor.
Not following you.Cut a board to the wall and prop it straight mount your flange and backfill the water plug hydraulic cement. Within 5 minutes it will turn solid give it a days rest adjust your flange slots off the wall to center and tapcon the puppy to the floor.
I thought of another idea.Cut a board to the wall and prop it straight mount your flange and backfill the water plug hydraulic cement. Within 5 minutes it will turn solid give it a days rest adjust your flange slots off the wall to center and tapcon the puppy to the floor.
Thank you for the response. I only had a couple concerns though.fill the hole with concrete to the top... dish in around the pipe about 1/2- 3/4 lower...glue hub closet flange inside 4" pipe.. then anchor to concrete...:biggrin2:
As you can see in the drawing, part of the elbow is exposed. Any issues with concrete around it? Suppose it would just be harder to chisel out if needed...There won't be enough stress on the pipe to hurt it.
You will want an outside flange when working with a 3" riser. Allow room for the flange hub when you dish the concrete.
Another way is to wrap the outside of the pipe with enough cardboard or sill seal to equal the thickness of the flange hub, pour the concrete, wait for it to cure. Then remove the wrap and glue on the flange.