The reason I want to know if its possible to select a specific storage to pull from for factories is because I run a hybrid p1/manufacturing planet for the types of p2 that cannot be made on a single planet. This all goes into a large p4 operation.
But you will see in this image below:
I run 1 extractor with 10 heads. I do this because it provides more than trying to fit 2 extractors with everything I need to fit on the planet itself. So there is no getting around a 1 extractor limit.
This extractor needs to pull a minimum of 24,000/hr to sustain me for my entire cycle. I usually pull around 26-32k avg/hr with a 3 day cycle which provides me a lot of buffer. That buffer I want to sit in my storages.
Now heres why I want 50/50 and to have certain factories pull from certain storages first:
In the image the 2 silos closest to the extractor are the p0 buffers. the 2 factories in line to the left with each buffer silo are P1 factories. Now, if my extractor only dumps into 1 buffer silo, I LOSE a ton pf p0 because the early cycles pump out too much. It would benefit me greatly if it would go 50/50 split between both buffers so I can effectively accumulate more.
Secondly, it would benefit me if the factories could be set to extract from a specific storage so that it would “even it out” so a str8 50/50 split into buffers, and a str8 50/50 pull from buffers so that neither one gets “too full” and thus I wouldn’t lose product as extractor cycles continue to go with nowhere to fill up.
I hope that answers your questions in regards to “why” I want to know this.
A brief explanation of that “hybrid planet” listed so people can understand better. (not important for the question, just to satisfy anyone’s curiosity of the setup pictured above)
I produce 2x broadcast nodes and 2x self-harmonizing power cores an hour. These both require Silicate glass, Microfibre Shielding, and Polyaramids ( all of which are P2 commodities that cannot be produced on a single planet)
This hybrid planet (when joined with its sister planet) produce the same amount of p2/hr as the standard single planet P2 planets. Which keeps my operation going and is a more effective utilization of planets as opposed to just having 3 separate p2 manufacturing planets with like 16 factories each. (went down that road, pain in the ass)
Extractor fills 2 storage silo’s with buffer (it is not optimal to try and run 2 extractors) the 2 storage buffers are because it fills FAST and there was enough pwrgrd/cpu for another.
Storages feed into 4 p1 factories. 2 of the factories route their p1 directly to a launchpad (for sister planets feeder silo mentioned later). the other 2 feed their product into the 2 advanced factories that produce the P2 product, which then routes its p2 to the second launchpad.
Now this one is producing Microfibre Shielding. And its sister planet (a Temperate) is also producing Microfibre Shielding (total of 4x p2 factories) and 2 of the temperates p1 factories are routing to a launchpad.
Once every 13 days, the launchpad will be full of p1. I pick up from planet A (silicon), and drop off at planet B. Pick up planet B’s p1 (Industrial Fibers) and drop off at planet A. So both are producing Microfiber shielding out of 2 advanced factories. 2 advanced factories each, 4x microfiber, viola, same result as having 2x standard 2 advanced factory single planet p2 setup.
That is what the third silo Up top of the image is for. It’s the sister planets feeder silo providing 13 days worth of the “other” required p1 for these p2. Then once every 27 days the p2 launchpad will need to be emptied.