MovieChat Forums > Crawl (2019) Discussion > Drain pipe

Drain pipe

posted 5 years ago by johnral (138)
7 replies | jump to latest

I'm baffled by this drain pipe. First, do basements (crawl spaces) really have a 3+ foot drain pipe? If so, what's the point? A 3 inch pipe will be sufficient to drain water. A large pipe seems to invite problems, such as critters coming in the pipe; plus the construction would be more complicated and costly. Second, the water entering the basement through those bricks seems to be surface water; i.e. water that has accumulated on the surface of the ground due to rainfall (versus e.g. rain dripping down the side of the house). If the water had really risen that far, to start coming into those openings in the bricks, then the water would have already come up the pipe. (Houses are typically built such that water flows away from the house, and so the water striking the house itself should have been shedding away from the house, and not toward the house.) This is basic Archimedes water and pressure principles. So the basement would have filled up long before water started dripping in through those brick openings.

[–] stratcat45 (118) 5 years ago

Thank you!! Though I enjoyed the movie....I could not understand why the crawl space was built to let water "in" rather than "out" and why the drain pipe was so large that alligators could swim through it!!

[–] kuku (3510) 5 years ago

For a suburb single family house, a suitable diameter would be around ∅1 foot drain pipe. 3 feet is too much, 3 inches, too small.

[–] Shibez (910) 5 years ago

I was wondering the same thing...it's like their basement drain pipe was the secret passage way to master Splinter's Lair. The fuck was that shit?

[–] AtomicReturns (1252) 5 years ago

I was wondering the same thing...it's like their basement drain pipe was the secret passage way to master Splinter's Lair. The fuck was that shit?

lol

[–] [deleted] 5 years ago

That whole scene doesn't make sense.

She exits the house through a broken hole in the basement brickwork. She's in some sort of of subterranean cavern... tree roots are hanging from the roof. She climbs up and out of the water so the drain pipe IS above the level of the water in the house and angles down.

But it raises a whole other set of questions.

Assuming it's a municipal drain what's its purpose? To carry away water that comes down via storm drains? Was there a municipal storm drain immediately beside the house. Not likely.

Also, the pipe exits at street level... we see grass and road signs when she exits.

So it's above the basement water level in the house at one end, but still exits at street level at the other even though it slopes down. How does that work?

[–] silexit (10) 5 years ago

Don't try to make sense of it. This movie is just dumb, pure and simple.

[–] TimMC (9143) 5 years ago

The drain pipe was to let the big alligators into the house.