Substitutions that don't substitute

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In Reply to: Substitutions posted by 1973shovel on October 20, 2024 at 06:20:49:

In my very early days of drainage design, I learned that two 4" corrugated plastic drain tiles (CPDT) do not equal an 8" (surface area, drag, head).
My boss, who was responsible for checking my work didn't catch it. Oh well...it looked like it would work....and it did.
Luckily, we overdesigned regularly.

Your interest may vary but the results will be same. (Byrd 2020)

I can't compete with the dead. (Buck W. 2010)

Cowards can't be heroes. (Byrd 2017)

Why don't catfish have kittens? (Moe Howard 1937)

Edits: 10/20/24

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Follow Ups Full Thread

Topic - Substitutions - 1973shovel 06:20:49 10/20/24 (1)

Substitutions that don't substitute - Byrd69 07:37:03 10/20/24 (0)

Follow Ups

Substitutions that don't substitute - Byrd69 07:37:03 10/20/24 (0)

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