Just as an update, here's what the bare closet flange looked like. You can see there's the adapter ring sitting on top. Unfortunately, the screw holes for securing it down to the floor overlap with the outer lip of the unifit flange. I knew there was a chance that I could use a wax seal and be okay, it made me worried that the unifit adapter bottom would be
on top of the closet flange rather it being
inside the unifit adapter.
So, instead I decided to use the
danco hydroseat converter because although the 4 screw holes for attaching it to the floor still overlapped with the outer edge of the unifit flange, they were recessed down a little bit so now the rubber gasket is inside the unifit adapter and presumably making contact with the rubber gasket. It does appear that I can get the back legs of the unifit adapter to sit more comfortably on the floor, so that's a win I think.
Per the instructions on the hydroseat, you put a wax seal between the old closet flange and the hydroseat and then you actually don't have a wax seal at all between the hydroseat and the unifit because there's the plastic seal on the hydroseat that will deform to make the seal. I test flushed the toilet and I didn't see any water leaks but I'm not entirely sure how this will hold up over time. I tried searching for other folks who used the danco converter and the unifit but came up short.
Also, I don't know who else needs to hear this, but my water line was a bit tight at 6" from center and unfortunately the bidet tee hits where the hose comes out. I bought a
7/8" to 7/8" 6" hose which should allow me some flexibility so I can connect the bidet tee at the end of the extension hose and comfortably away from the water line coming in. Unfortunately they don't sell these at Home Depot or Lowes but Amazon has them so stay tuned for how that piece goes. I hope I'm in the home stretch but let me know if there are any suggestions for how I approached this. Thanks for the help!