I've had a Zojirushi insulated pot for about ten years. I've got pretty hard water, but the scale just seems to build up and flake off in big chunks. The pot

I've had a Zojirushi insulated pot for about ten years. I've got pretty hard water, but the scale just seems to build up and flake off in big chunks. The pot still works fine. The gasket hardened and cracked, but Zojirushi USA sells parts online. It was about $10 for a new one.