I have one Problem with the logistic network, that keeps bugging me:
I want to use the logistic network to distribute resources off belts to where they are needed (using a provider and a requester), but also to feed not needed resources back (eg from my inventory) into the belt system (using a requester). But this creates a belt-provider-requester-belt loop.
In https://www.factorio.com/blog/post/fff-203 I read about the buffer chest. But it seems, this also does not solve this problem, as it can pull from providers and requesters can pull from it.
So, how to solve this problem?