Please Help! I am installing a new KOHLER toilet and I have purchased a new PVC toilet Flange which sits inside of my waste pipe, I primed and sealed it to the existing waste pipe and it sits too high off the floor, the toilet will not go to the floor with this type of flange, and if I saw it off with a hack saw, I'm not sure how to connect another flange because there isn't any waste pipe that will be out of the floor for me to stick the new flange into as I have already done, Any suggestions on how to fix this?

What was wrong with the old flange that you decided that you needed a new one?? What kind of pipe do you have coming up to the commode flange?

It's a black plastic tube. Inside diameter of 3". I have a PVC flange inside of it, the kind that slips into the existing waste pipe, primed and cemented, now I can not lock the toilet down the bolts will not tighten on the side of the toilet.

We need to know where the toilet sets. On a slab? First or second floor? If you had to get underneath could you? Waiting on you, Tom

If I came upon something like this, I would probably take my Dremel tool with a fibre cut-off wheel and cut the top of the new flange off flush with the finished floor, I would then take a sawzall and make several slices into the inside of the remaining PVC, being very careful to not cut into the ABS, I would then very gently pry the pieces of PVC away from the ABS with a flat blade screwdriver.

I would then buy a new ABS flange and dry set it before gluing it up again, and if it still sat too high, I'd take my trusty Dremel tool with the cut-off wheel and cut the required amount of ABS pipe internally until the ring of the flange sat flush with the finished floor.

Of course this is all predicated on the assumption that there is enough ABS pipe left to cut off and still receive the new flange.

Can you take a picture of it showing a side view and internal view?

That would be very helpful.

Just my two pence.