This morning I stepped out of my shower and I heard a cracking noise. A 5" crack appeared in the acrylic shower-pan. Not enough support underneath obviously. It had always flexed a little bit, but it survived for 25 years. I guess the acrylic fatigues over time and couldn't take it anymore. Luckily it happened after I was done and these was no standing water in the pan at that moment. Just some residual moisture. I already was planning a redo of the bathroom in March or April next year. (I si...