Thanks, edj. I see your point about the optimal
way of doing it: new flange and get new concrete
in position to anchor a new flange down.
I am also interested in your "band-aid" approach.
The current flange isn't in that bad of shape
except for that slight crack in the PVC. I figure
if I could glue that crack then the flange would
be solid again -- or at least solid enough.
: : I have an offset toilet flange made of PVC with a
: : blue painted steel flange ring. I have slightly
: : cracked the PVC near the metal flange in an attempt to
: : cure a rocking toilet. This was done by tightening
: : the nut down too much.
: : I tried a flange replacement that slips over the whole
: : original flange and will bolt to the concrete just fine,
: : but the toilet won't fit over the new replacement
: : flange.
: : I assume the whole original flange can't be replaced
: : right? The PVC is glued to the original discharge pipe.
: : I assume that once PVC is glued, it's glued.
: : Can I try to glue the crack? Could I neatly cut the
: : top part of the PVC flange with a Dremel tool? Then
: : clean, primer, and glue the PVC back? Would it hold?
: : Then metal ring is fine. Just when I snug the nut down
: : the crack in the PVC near the flange opens up, once
: : again leading to a rocking toilet.
: : Note that the original flange is not bolted to the
: : slab foundation, just the PVC pipe. Also note that
: : any attempt to bolt the flange down won't work as to
: : get the offset, quite a bit of foundation was chipped
: : away -- enough that there isn't much material under
: : the metal flange lip.
: Unless you can secure the flange solidly I don't think you'll be able to solve your rocking toilet problem. Is it possible to pour new concrete around the flange.What I would do myself would be to break the floor around the flange,dig out enough dirt to undermine the concrete. I would put toggle bolts in the holes of the flange,screw the wings on the bolts,the bolts will provide a good solid anchor for the flange. Mix the concrete and leave it rather runny,fill the entire hole and allow it to set properly. Being a plumber I would cut the pvc from the inside of the pipe with a cutting wheel, glue a coupling and new flange on.I could tell you how I would "bandaid" the old flange if you're interested.