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Low-flow toilets: worth the hype or just a pain?

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activist50
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(@activist50)
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I’ve wondered about this too. We swapped out our old toilets for low-flows a couple years back—mainly chasing that water bill savings, honestly. The plumber said install was key, but even with a pro job, our downstairs one still needs the plunger way more than the old beast ever did. I’ve heard Toto and American Standard are less finicky, but I’m not convinced it’s just the brand. Maybe it’s just the price you pay for saving water? Still, I do miss not having to think twice after taco night...


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“our downstairs one still needs the plunger way more than the old beast ever did.”

Honestly, I hear this a lot, but I don’t think it’s just about saving water. Here’s what I’ve seen:

- Install matters, but so does the drain line. Older pipes with buildup? Even the fanciest low-flow will struggle.
- Not all low-flows are created equal. Some have better flush tech—look for “pressure-assisted” if you want less plunging.
- Sometimes folks use more TP with low-flows, thinking it’ll just go down like before... not always true.

I get missing the “old beast,” but with the right setup, you shouldn’t have to fear taco night. Maybe time to peek at those pipes or try a different model?


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joshua_echo6109
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Pressure-assisted models really do make a difference, but if your pipes are old or have a lot of buildup, even the best toilet will clog more. I’ve seen folks swap out three toilets before realizing the real issue was in the line, not the toilet itself. Sometimes it’s just time for a snake, not a new bowl.


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juliew46
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That’s a good point—people blame the toilet when it’s really the pipes half the time. I’ve had tenants complain about “bad” toilets, but after running a camera down the line, turns out roots were the real culprit. Low-flow models get a bad rap, but if your plumbing’s ancient or full of gunk, nothing’s gonna flush right. Has anyone actually seen a low-flow outperform an old-school model in a building with original cast iron lines? I’m skeptical they ever do better unless the whole system’s been updated.


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geocacher133381
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Low-flow toilets definitely get blamed for a lot, but I think you nailed it with this:

if your plumbing’s ancient or full of gunk, nothing’s gonna flush right
. I just bought my first place and the inspector pointed out that the old pipes were more likely to cause issues than any toilet. Ended up snaking the line and suddenly the “bad” low-flow started working fine. Still, I’m not convinced they’re better if the rest of the system is original—seems like you’re just asking for clogs unless you tackle the whole setup.


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