We decided to go with a greywater system for our tiny home to stay eco-friendly, but man, the venting requirements are tricky in a small space. One tip I learned the hard way is to always over-insulate your external lines if you’re in a cold climate. I actually had a friend recommend Kurt Bohmer Plumbing when I hit a wall with my tankless heater setup. Their advice really helped me get the water pressure stabilized.