Replacing a RV Toilet Flange

[Carl n Susan]

In the process of installing a new Dometic 320 toilet, I discovered the toilet floor flange is toast. One "T "bolt hole is broken and the other is close to it. The flange appears to be a ceramic type material.

I did the usual Google searches and found that some RVs have a glued in flange and some have a screw in flange. I am wondering if anyone has changed one on a 2012 Montana (or in that era) and which type it might be.

I hope to get the flange out tomorrow. The black tank was replaced in the past so there is a No-Hub connector on the down pipe. I should be able to remove the No-Hub and then the flange and the short down pipe will come up and out (theoretically). This makes it easier to work on a glued connection. But, being naturally lazy, if it is a screwed on flange then I prefer to just unscrew it and install a new one.

Hopefully someone has been down this road (hole) before and knows the answer.