I used sink plungers in toilets pretty much my whole life until i scrolled across a similar diagram one day and discovered the truth.

      • Mouselemming@sh.itjust.works
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        20 days ago

        Basically, it’s shaped weird and won’t make a seal. It’s a WaterSense toilet that flushes very efficiently with 1.28 gallons, with an unusual configuration of input/output under the water. Almost like a channel from front(ish) to back. If you try to use a plunger like those pictured, part of the channel isn’t covered, so you just push water back out into the bowl. Good thing I was trying it with a clean new toilet! The wide deep beehive shape lays rubber all into the space, pushing the water down into the exit hole.

    • Varyk@sh.itjust.worksOP
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      20 days ago

      What’s different between the beehive flange and the toilet plunger flange? they look the same.

      or perhaps I should ask what shape is your toilet?