Explain your idea

Basically say you are filling a tank with a fluid but need to supply something as well as it works right now the flow is evenly distributed but say i can shut off the tank supply to shunt all production of said fluid to the rest of the network

my reason:

i have a main base that produces the biodiesel and a few storage tanks for it. now i have a very long run of pipe to a remote generator for excavation purposes with tanks. i want to divert all production to these tanks to fill then shut off the supply giving me x hours of digging which if timed right wont overflow storage. i am using a keep chunk alive mod so that the entire network is constantly loaded.

i figure with all pipe in real life there does exist pipe valves so i think it should be added