Living in the Netherlands, water, and especially groundwater, is a massive part of life around here. It's good to finally learn how we control all that when building anything a meter below sea level.

this definitely explains why, after resolving water management issues at my house, it only took a few months for water to find its way back in to the udrain and thereby to the sump.

I live in a town that apparently used to be a swamp or marshland on top of being in a geological bowl, so we flood almost every storm. it never occurred to me how difficult it would be for a civil engineer in this area. I love your channel cause it helps me notice these things

I've never been more glad to live somewhere where there is only 6 inches of soil before you hit rock.

I was introduced to this concept during flood defense. Turns out it's too expensive to shore up a river with miles of concrete so you have to rely on good solid earth... And when the water level rises too far, any water seeping through is a threat that can only be contained by, not blocking the exit hole, but building a cylinder of sandbags around the exit that allows the water level to rise to the level of the river on the other side, equalizing pressure and stopping flow.

I love this channel, thanks for educating us on YouTube university.

I love that acrylic sand water flow demonstration! There are so many little experiment you could do with it. Groundwater is super interesting and I am always trying find ways to tie in fresh water with my classes--now I have another rad application! Thanks!

One of the challenges of a great educator is to simplify concepts and tame complexity while keeping it scientific.