You need to focus on both of these two things:
Regardless of the bends, is the pipe's height at output significantly lower than its height at input? If yes, you're good
Does the bendy part go up and down enough such that it could trap enough water to fully block the pipe? If yes, you're good
You need to focus on both of these two things:
Regardless of the bends, is the pipe's height at output significantly lower than its height at input? If yes, you're good
Does the bendy part go up and down enough such that it could trap enough water to fully block the pipe? If yes, you're good