Toilet Flange Extenstion

[drier81]

Hi - I recently installed a new floor, and I had to replace the toilet flange in the process. I have a few questions on the right way to install the flange, and I attached photos to show what I am talking about..

Photo 1 Small Gap Between Plastic Pipes - before I put the flange extension in, do I need to do anything about that 1/4 inch gap in photo 1? The pieces seem to be stuck together pretty well, but not sure if I need to seal that gap first

Photo 2 Glue Flange - I read on a few sites that putting glue or sealer around the extension prevents water from leaking in the event of a backup. Do I need to apply anything to the flange before inserting into the pipe and securing to the floor?

Photo 3 Flange Drain Width - with this new flange, the width is about 2 inches, is that sufficient or will the narrower drain cause problems with more modern toilets?

Thanks in advance.

 

[Terry]

Most modern trapways are about 2" or a little less.
Flanges tend to be glued in. With ABS, I would use an ABS flange, not PVC. Does the new flange fit inside the 3" that is in the floor already?

 

[Sponsor]

 

[drier81]

Terry - thanks for the reply.

Good to know the trapway is not an issue. And yes, the new flange fits inside the 3" pretty well, it is not super tight, but a snug fit.

I'll look for a similar ABS flange, any recommendation on the type of glue / sealer to use?

 

[Terry]

ABS to ABS would be ABS glue