hj mentions an old toilet design that is similar in that regard; the ability to plug, and not overflow. I can't remember the name of the toilet now, but maybe he will read this and remember for us.
The picture I see of the Penguin reminds me of the Mansfield trapway design that we take out. Maybe they have changed it from the picture, maybe not, but based on our experience in the real world, I don't like see those two sharp bends. There are plenty of bowls that will "MaP" out pretty well, assuming you use 3/4" x 4" plastic missiles. In the real world, they aren't wrapped in slippery plastic, and the sizes are different. They also don't try flushing toothbrushes or make up pens. I find my share of odd things between the two sharp bends, so I would naturally feel better about it if the picture didn't show that flaw.
I understand how fascinating it must be to consider a bowl that can be left plugged, with a leaking flapper that nobody has bothered to fix.
Can you say "Renter" ?
A person plugs the bowl, and then walks off. You hear the water running day and night, but if you turn your television up just a bit, you no longer hear the white noise of the leaking toilet in the next room, just the white noise of the television.
I have been getting calls from a renter quite a long ways from where I live; she has a $4.99 toilet seat, and the hinges are flimsy.
I mention to her that if she goes to a hardware store, she can pick up a $14.99 seat with wide hinges and they won't wobble back and forth. Just the driving time there and back would be at the minimum 90 minutes, but she would like me to donate my time and install the $14.99 seat rather then go to her local hardware store, and pop a new seat on herself. She says if "I" put the seat on for her, she will be calling me back to snug up the screws every few weeks for " For Free! "
So maybe she needs one of the bowls that she can plug, and let run and run, she's sounds perfect for that.
Is it common for people to plug their toilets, leave them that way and let them run and run and run onto the floor.
Maybe this is a good idea.
I know they have a shutoff at the wall, but that would require someone bending down and getting their hands dirty turning the valve off.
I did read some reviews, and one said that the overflow "protection" "has already paid off." Does that mean he plugged it?