Edit: OK, I am not sure where I got 2.5 gallons from because it turns out standard toilets in the US are 1.6 gallons, as the comment below states. It still seems crazy to me that 1.6 gallons can push waste all the way from the toilet to the sewer. I feel like it would stop at some point and need more water to get to the street.
On a side note, I find plumbing and water treatment fascinating.
In: Engineering
Same way a 3 foot wave can take out a grown man. I mean, it’s just the right amount of everything. Slope, time to travel between wastes, size of everything, and all of the ways to check if there’s a blockage every step of the way. Took years to perfect the system we have now and it’s only getting better.
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