Rainwater toilets and greywater showers: City tries new water-saving tricks

Totally get the hesitation - plumbing can surprise you in the worst ways. But I do think these water-saving setups are getting safer and more user-friendly. Maybe it’s just about finding a system with clear maintenance steps? I’m still nervous about leaks too, though...

I’m still nervous about leaks too, though...

Leaks are my nightmare fuel, honestly. It’s wild how one tiny drip can turn into a full-blown mess if you’re not on top of it. I get what you mean about the newer systems being safer, but I still double-check every seal and joint like my life depends on it. The maintenance guides help, but sometimes it feels like you need a decoder ring to figure them out. Maybe I’m just paranoid, but I’d rather be safe (and dry) than sorry.

Had a job last month where a “tiny” leak in a greywater line turned into a full ceiling collapse. You’re not paranoid - those guides are vague for a reason. I always trust my gut and check everything twice, even if it feels overkill.

Had a job last month where a “tiny” leak in a greywater line turned into a full ceiling collapse. You’re not paranoid - those guides are vague for a reason. I always trust my gut and check everything twice, even if it feels overkill.

- 100% agree on double-checking, especially with greywater. Those lines can look fine on the outside but hide pinhole leaks that turn into disasters.
- City codes are catching up, but honestly, some of these new water-saving setups feel rushed. Not every building is ready for retrofits, especially older ones with questionable pipe runs.
- I’ve seen “minor” leaks go unnoticed for weeks because folks assume it’s just condensation or a little drip. Next thing you know, you’re dealing with mold or worse.
- Guides are helpful, but they don’t cover every weird scenario you’ll find in the field. Sometimes you just have to go with experience and gut feeling.

Curious - how’s everyone handling inspections on these new installs? Are you finding more issues with rainwater toilets or greywater showers? I’m seeing more callbacks on the shower side, but maybe that’s just my area...

Funny timing - just last week I had a rainwater toilet install where everything looked perfect during the pressure test, but two days later the homeowner called about a slow drip behind the wall. Turned out a fitting wasn’t seated right, even though it passed inspection. I’m with you on the guides not covering half the weird stuff we run into, especially in older houses where nothing is square. Personally, I’ve had more headaches with rainwater toilets than showers, but maybe that’s just luck (or bad luck). It’s wild how much can hide until you open up a wall...

That’s exactly the kind of thing that makes me nervous about these “innovative” installs. You can do everything by the book, double-check all the fittings, and still get a surprise leak days later. I’ve had similar issues - one time it was a slow drip that only showed up after a heavy rain, and by then the drywall was already stained. The guides are fine for basics, but they never seem to cover what actually happens in real houses with weird angles and old pipes.

I get why cities want to push rainwater toilets and greywater systems, but honestly, I’m not convinced they’re worth the hassle for most folks yet. The savings sound good on paper, but if you’re constantly chasing leaks or dealing with repairs behind finished walls, it adds up fast. Still, hats off for sticking with it. Takes patience (and probably a good sense of humor) to deal with all the curveballs these systems throw at you.

- Totally get where you’re coming from - those “hidden” leaks are the worst, especially in older homes where nothing is square and pipes run in weird places.
- I’ve noticed that even with pro installs, the maintenance side gets glossed over. Like, what’s the real upkeep cost after a year or two?
- Curious if anyone’s found a way to monitor for slow leaks before they wreck drywall. Is there some sensor or trick that actually works, or is it just luck and vigilance?

Funny timing - just last week I was crawling under a 70s-era house and found a slow drip that had probably been going for months. The owner had no idea, since the drywall was still fine. I’ve seen some smart leak sensors that sit on the floor, but they’re hit or miss if the water doesn’t pool right there. Has anyone tried those inline flow monitors? Wondering if they’re worth the hype or just another gadget to babysit.

Inline flow monitors are actually pretty slick for catching those sneaky leaks, especially the ones that never make it to the floor. I’ve put a few in for folks who were tired of playing “find that drip” every few months. They’re not totally set-and-forget - sometimes they’ll flag weird usage as a leak, like if you fill a big tub - but honestly, I’d rather get a false alarm than have a crawlspace swamp. If you’re already crawling under houses, you’ve earned a break from the guesswork.

Honestly, those false alarms are a small price to pay compared to the mess a hidden leak can cause. I had one of those “phantom” leaks in my own place - couldn’t see a drop anywhere, but the crawlspace insulation was soaked. Flow monitor caught it before it turned into a full-on mold party. They’re sensitive, sure, but I’ll take that over tearing up drywall for nothing. The city’s new push for rainwater and greywater setups is cool, but I’m betting we’ll see even more need for these monitors once folks start mixing all those lines. It’s gonna get interesting...

Yeah, I get where you’re coming from. Those flow monitors can be a pain with the false alarms, but honestly, I’d rather deal with a few annoying beeps than a soaked subfloor or worse.

- Had a job last month where the homeowner ignored a couple “nuisance” alerts. Turned out there was a slow drip behind the washing machine - by the time we found it, the wall was mush. Insurance didn’t cover much because they waited too long.
- Mixing rainwater and greywater lines is gonna be a whole new ballgame. I’m not convinced everyone’s ready for how finicky those setups can get. Cross-contamination is no joke if you don’t have solid backflow prevention.
- The city’s push is cool in theory, but I’ve seen some DIY installs that made me cringe. Folks think it’s just “hook up a barrel and go,” but there’s way more to it if you want to avoid headaches down the line.

I do think you’re right about monitors becoming more important as these systems get more common. The tech’s not perfect, but it beats ripping out drywall or crawling under the house with a flashlight every time you smell something musty.

Guess my only gripe is when people treat these monitors like magic - they’re tools, not guarantees. Still, better safe than sorry when water’s involved... especially with all these new setups coming in.

Totally agree about the monitors - false alarms are annoying, but water damage is way worse. I’ve seen folks try to “fix” alerts by just unplugging the sensor... not a great plan. Also, with rainwater and greywater, maintenance is gonna be key. Filters clog faster than people expect, especially if you’ve got trees nearby. Not sure everyone’s ready for that extra upkeep, honestly.

I hear you on the maintenance side - my neighbor set up a rainwater system last year and was surprised by how fast the filter gunked up, especially after a windy week. I’m all for saving on the water bill, but I do wonder if the extra work and cost of replacing filters every couple months really balances out. If anyone’s thinking about it, maybe keep a checklist handy: check filters monthly, clear leaves from gutters, and don’t ignore those alerts, even if they seem like a hassle. Water damage is no joke... learned that the hard way after a leaky pipe under my sink.

I do wonder if the extra work and cost of replacing filters every couple months really balances out.

I get where you're coming from, but honestly, filter swaps are nothing compared to the mess a busted pipe or a flooded basement leaves behind. I've been called in for more than a few disasters where people skipped basic upkeep - rainwater or not, neglect always costs more in the end. Filters are cheap insurance.

That said, I think folks overcomplicate these setups sometimes. You don't need to buy the fanciest filters out there, and most of the time, a quick rinse will stretch their life way past what the box says. I’ve seen people toss out perfectly good filters just because the indicator light blinked. If you’re even a little handy, you can DIY some of the maintenance and save a bundle.

Honestly, I’d rather spend ten minutes hosing out a filter than pay for another round of drywall repair. Water damage is brutal, but with a bit of regular attention, most of these systems are pretty forgiving.

Honestly, I’d rather spend ten minutes hosing out a filter than pay for another round of drywall repair.

Couldn’t agree more. I’ve seen folks ignore a $15 filter and end up with thousands in water damage. It’s wild how fast things go sideways when you skip the basics. Quick tip: if your filter looks a little grimy but water’s still flowing fine, just give it a rinse and keep going. No need to toss it every time the light blinks - those sensors are way too sensitive sometimes. Regular checks beat emergency calls any day.

Regular checks beat emergency calls any day.

Yeah, skipping filter maintenance is just asking for trouble. I’ve seen people try to save time and end up with leaks behind the wall - never worth it. Quick rinse every couple weeks keeps things running smooth. Sensors definitely jump the gun sometimes, too.

- Had a “fun” weekend once when I ignored the pre-filter on my rainwater setup. Thought I could stretch it a bit longer… ended up with a backup and a bathroom that smelled like a swamp.
- Agree about sensors being jumpy. Mine loves to throw a tantrum if there’s even a speck of dust.
- Quick tip: I keep an old toothbrush by the tank - makes filter scrubbing way less gross.
- Maintenance is boring, but mopping up greywater is worse. Trust me, learned that the hard way.

Yeah, maintenance is a pain, but honestly, I think you nailed it - dealing with a swampy bathroom is way worse than just keeping up with the filter. I tried skipping a cleaning once, thinking “how bad could it get?”... Let’s just say my roommate still brings up the smell.

That toothbrush trick is gold. I started using an old dish brush for the bigger stuff, but maybe I’ll switch to a toothbrush for the tight spots. For the jumpy sensors, I’ve found that a quick blast of compressed air (the kind for keyboards) helps clear them without having to take everything apart. Not perfect, but it saves me from fiddling with wires every week.

Honestly, I used to think all this water-saving tech was overkill, but after seeing how much water we actually save, it feels worth the hassle. Still, if anyone figures out a way to make maintenance less gross, I’m all ears...

- Maintenance is always the part nobody talks about when they pitch these systems. Filters, sensors, gunk buildup - none of it’s glamorous, but you skip a week and suddenly you’re living in a biology experiment.
- Compressed air for the sensors is a solid move. I’ve used it on some of the older models, but sometimes it just blows the grime deeper in. For stubborn stuff, I’ve had to pop the cover off anyway. Not ideal, but better than dealing with a shorted sensor.
- The toothbrush trick works, but I’ve also tried those little dental brushes for the really tight spots. They’re cheap and surprisingly effective.
- Water savings are real, but I still wonder about the long-term cost of all this upkeep. Filters aren’t cheap, and if you mess up the maintenance, you’re looking at repairs that can get pricey fast.
- Anyone tried any of the newer self-cleaning filter models? Curious if they actually cut down on the gross factor or if it’s just another thing that’ll break down the line.

I’ve had mixed luck with the self-cleaning filters. The first-gen one I tried basically just smeared the grime around and called it a day - ended up cleaning it by hand anyway. The newer model’s a bit better, but honestly, it still needs regular attention if you want to avoid that swampy smell. I keep a stash of old electric toothbrush heads for the tight spots; way easier than wrestling with the whole unit. Maintenance is definitely not “set and forget,” but at least my water bill doesn’t make me cry anymore.