How I Fixed A Crack In An ABS Camper Shower Floor Basin

Again...I watched a bunch of videos on TH-cam. Yall know I got a PHD in TH-cam
I wanted to find a way to not have to tear out this whole shower and replace the floor pan. I've found that there is almost (almost) always a solution. As long as esthetics aren't your main focus anyway.
This method will only work on abs material. I'm not actually sure what other showers in other campers or RVs are made of. Maybe fiberglass or acrylic??