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

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walker72
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duct tape’s just a band-aid

I get it, but honestly, duct tape saved me from a disaster when my old laundry line split. Not saying it’s a forever fix, but for stuff like rainwater pipes, sometimes a quick patch buys you time until the weekend. I do keep a couple of hose clamps around now though—those are way sturdier than tape and still easy to swap out. Manual bypass valve sounds smart, but I’m still figuring out where to even put one without tearing up half my wall.


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crobinson65
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Duct tape’s like the Swiss Army knife of home fixes—definitely not permanent, but it’s saved my bacon more than once. I tried to “temporarily” patch a leaky rainwater pipe last month, and that “temporary” fix is still holding up... for now. Hose clamps are a step up, though. As for manual bypass valves, I’m right there with you—my plumbing knowledge pretty much maxes out at “don’t flood the basement.” The idea of cutting into walls gives me hives. Maybe one day I’ll get brave enough.


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jose_tail
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Honestly, duct tape’s a lifesaver in a pinch, but I’ve seen way too many “temporary” fixes turn into long-term headaches. Once water gets behind that tape, you’re just asking for mold or a bigger leak down the line. Hose clamps are better, but if you’re dealing with rainwater systems or greywater setups, it’s worth learning the basics of proper fittings. Cutting into walls sounds scary, but sometimes it’s less hassle than cleaning up a flood later... trust me, I’ve seen some wild stuff behind drywall.


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Cutting into walls is always that moment where I have to take a deep breath and remind myself it’s probably not as bad as I’m imagining. I’ve patched up a few leaks behind drywall and, yeah, it’s never fun, but you’re right—it’s usually better than dealing with a soggy mess later. I tried using duct tape on a leaky washing machine hose once and thought I was clever until the next laundry day... let’s just say the basement floor got a good rinse.

I’m curious, for those who’ve set up rainwater toilets or greywater showers, what kind of fittings or connectors have actually held up over time? I keep seeing those push-fit connectors at the hardware store, but I’m not sure if they’re reliable for something like this or if it’s better to go old-school with compression fittings or even PEX crimp rings. Also, has anyone run into issues with city inspectors or code when running these alternative water lines? I’ve heard mixed things about what’s allowed.

And on the mold front—has anyone found a good way to monitor for leaks behind walls without tearing everything open? I’ve seen those moisture meters but haven’t tried one yet. Just wondering if they’re worth it or if it’s just another gadget collecting dust in the toolbox.

It’s wild how something as simple as a “temporary” fix can turn into a whole weekend project. Anyone ever regret not just doing it right the first time, even if it meant making a bigger mess up front?


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nalapeak916
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I’ve been down the rabbit hole with fittings for a greywater setup, and honestly, I get why you’re hesitant about push-fit. They’re super convenient, but I’ve noticed they can be hit or miss if the pipe isn’t cut perfectly square or if there’s any grit left on the ends. For anything behind a wall or in a spot that’s hard to access later, I’d go with PEX and crimp rings. It takes a little more time upfront, but I haven’t had any leaks since switching over. Compression fittings are okay too, but they seem more finicky if things shift even a little.

City code is its own beast. Where I am, you need a clear separation between potable and non-potable lines, and inspectors really want to see backflow preventers and everything labeled. I got flagged for not using purple pipe (which apparently is the standard for reclaimed water) even though it was just for toilet supply. Ended up redoing part of it just to pass inspection... kind of annoying, but at least it’s done right now.

On the leak detection front, I bought one of those cheap moisture meters on a whim. Didn’t expect much, but it actually caught a slow drip behind my bathroom wall before it turned into anything major. Not perfect—sometimes gives weird readings near outlets—but I’d say it’s worth having, especially if you’re paranoid about hidden leaks like me.

And yeah, every time I try to “just patch it for now,” it ends up being twice as much work later. At this point, I’ve learned to just bite the bullet and do it right the first time, even if it means living with a mess for a few days. The peace of mind is worth way more than saving an hour or two upfront.


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