9.8 m/s squared

  • We are currently upgrading MFK. thanks! -neo
How many gallons would that move?

There are a lot of variables when it comes to gravity and water - pipe size, distance and angle of drop, full-syphon versus vented, corrugated versus smooth pipe, fitting type/size/number, and other factors I'm forgetting, I'm sure.

What are you trying to do?
 
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