I would research elimination communication. It is essentially what you would be doing with a non-walking toddler.
Good luck! My little guy with muscle weakness/didn't walk til 19 months didn't train consistently til 3.5 and he still has accidents. He isn't remotely close for nights.
Middle school teacher by day, super mom by night
Mommy to The Boss~2007, The Energizer Bunny~2009, and The Princess~2011
My kids are no longer in diapers, but somehow, my computer keeps finding its way back here...