Sometimes I wonder if these water-saving toilets actually save water when you have to flush twice every time.
Honestly, that’s the million-dollar question. I’ve seen a lot of these “eco” models where the half flush just doesn’t cut it, and folks end up double-flushing anyway. Ever notice how some brands seem to nail it and others are just... meh? Sometimes it’s a design thing, sometimes it’s just finicky install or setup. You’re not alone in thinking there’s gotta be a better way—sometimes I think the old-school toilets had it figured out, even if they weren’t as “green.”
Had a job last month where the client was frustrated for the same reason—brand new dual-flush, but the half flush barely moved anything. Turns out, the installer hadn’t adjusted the float properly, so it wasn’t releasing enough water. Sometimes it’s a setup issue, not just design. Still, I’ve seen some models that just never work right no matter what you do. Makes you miss those old tanks that could flush a sock if they had to... though I don’t recommend testing that theory.
I hear you on those old tanks—never thought I'd miss the sound of Niagara Falls every time I flushed, but at least they got the job done. With these dual-flush setups, I've noticed some brands just don't have enough power, even when everything's adjusted right. Sometimes it's like the half flush is just for show.
Curious if anyone's actually managed to get a half flush working well on a newer model without fiddling with the internals? Or is it just a lost cause with certain brands? I keep wondering if it's a water pressure thing in some houses, or if the design's just too "efficient" for its own good.
Title: Half flush never seems to work right—am I missing something?
I know exactly what you mean about the old tanks—those things sounded like a waterfall, but at least you never had to wonder if everything went down. With these new dual-flush toilets, I get the feeling that the half flush is more of a polite suggestion than an actual function. On mine (a fairly new Toto model), the half flush is supposed to be for liquids, but honestly, sometimes it just swirls around and leaves stuff floating like it’s not even trying.
I did try adjusting the float and checking the flapper chain, thinking maybe I could squeeze a little more power out of it, but it didn’t make much difference unless I started messing with the internals, which seems counterproductive for a “modern upgrade.” From what I’ve read, some brands just have wimpy flush designs. My neighbor has a Kohler with a dual-flush and swears the half flush actually works, but he’s on city water with pretty high pressure, so maybe that’s part of it. My house is older and the pressure isn’t great... could be a factor.
One thing I noticed: if you have any buildup in the rim jets or under the flapper, it can cut down on flush strength. I ran some vinegar through mine and got a little improvement, but nothing dramatic. Sometimes I wonder if these “ultra-efficient” designs are just too clever for their own good. They save water, but only if you don’t have to double-flush every time.
I wouldn’t call it a lost cause for every brand, but I do think some models just aren’t up to the task unless your plumbing is perfect. It’s kind of ironic—trying to be eco-friendly but ending up using more water because you have to flush twice. Maybe one day they’ll get it right... or we’ll all just go back to those Niagara Falls tanks and pay a little extra on the water bill.
You’re definitely not alone—my dual-flush does the same thing. Sometimes I wonder if it’s just not designed for older plumbing or lower pressure. I’ve tried cleaning out the jets and even swapped out the flapper, but it’s still hit or miss. Maybe these things just work better in theory than in practice? It’s kind of funny how “saving water” can mean flushing twice anyway.