Rainwater toilets are a cool idea in theory, but man, the devil’s in the details. I’ve seen a few setups where folks thought they had it all separated, only to find out months later their “greywater” was actually a weird soup of everything. Not fun. City inspectors can be a pain, but after seeing one too many Frankenstein plumbing jobs, I get why they’re strict. Still, if you’re willing to keep up with maintenance and double-check those valves, these systems can save a ton of water. Just gotta be honest about the work involved—definitely not a set-it-and-forget-it deal.
Had a buddy who tried to rig up his own rainwater flush system last year. Looked great on paper, but after a few months, he realized the filters were clogging way faster than expected and one of the backflow valves failed. Ended up with some pretty gnarly smells in the bathroom. If you’re thinking about it, definitely plan for regular checks—those little maintenance steps make all the difference. It’s not just about saving water, it’s about keeping things running smooth (and not gross).
