518
i'm at a loss
(lemmy.blahaj.zone)
Be sure to follow the rule before you head out.
Rule: You must post before you leave.
this is right. Even if 2 to 3 is open.
The only other candidate is 1. If the faucet has much higher flow than the pipe from 1 to 2 can drain away, then 1 can fill up faster than it drains.
5 is correct but this is a loss leader.