Pretty Pipes is a simple to use, all-inclusive item transport mod featuring simple pipes that can be upgraded using modules to accomplish much more advanced tasks.
If an extract module is placed before multiple inventories are connected to a single pipe, only the inventories on one side are considered for input. Only once the side is full is the other side considered. See video attached.
As far as I can tell, North/West are favored, haven't tested Up/Down or tri-input pipes.
https://github.com/Ellpeck/PrettyPipes/assets/129862749/ea7129c0-35d4-497b-a1cf-77927fb27865
If an extract module is placed before multiple inventories are connected to a single pipe, only the inventories on one side are considered for input. Only once the side is full is the other side considered. See video attached.
As far as I can tell, North/West are favored, haven't tested Up/Down or tri-input pipes.