Native German who has lived in the U.S. for many decades here. I agree with you, tyingq.

Also, when I try to squat with my feet flat on the floor as shown in that video, I invariably fall over backwards.

People who need to squat multiple times per day to poop throughout their lives have much better ankle flexibility than western office workers who spend their lives sitting on chairs, car seats, and chair-style toilets and never squat ever.

I also fall over when I try to squat flat on my heels. Friends who do yoga and friends from countries with squat toilets have no trouble with it though. All children under about 10 years old can squat just fine. Lesson: get your kids a squat toilet if you want them to have standard human levels of ankle flexibility when they grow up (also very helpful for improving jumping skill, if they plan to ever play sports). ;)

Probably more confidence from a native German confirmation than a chemical engineer :). You guys aren't much into pandering.

I'm sure submerging it in water makes some difference, but I'm not sure it's really that big of a difference. The odor is there whether submerged or not because the odor doesn't just come from the "product" itself.

Considering the kind of odor we are talking about here, I just don't think the difference is really that huge because when it stinks it stinks, and it pretty much always stinks.

Tho, how to quantify odor sounds like an interesting question.

> but I'm not sure it's really that big of a difference

Isn't filtering volatiles through water part of the logic of a water pipe/bong/hookah?

It’s mainly about cooling the smoke.

Not all diets produce such odoriferous feces. When I'm eating mostly plain raw produce like a vegetarian, a typical western flush toilet is pretty successful in minimizing poop odor. Meat in my diet makes odor suppression a whole lot more challenging.

For the last few months I've been using a urine-diverting style waterless toilet, where the solids land in a bucket with dirt. This means the solids are uncovered until completion, when more dirt gets poured over. The dietary feedback in this arrangement can be brutal, odor being a significant component until covered.