e-Valve is the technology that transmits to the automation system which of the tanks with manifolds at the stations with suction system. It works on the principle of sensing the open-closed-half-open position of an electronic unit developed by Asis on a specially ed valve and transmitting it to the automation system. In this way, the automation system processes all the inputs and outputs on the active tank, and an accurate stock management process is realized. The e-Valves attached to the outlet of each tank with a manifold are connected to the Asis Probe cables and can send data to the automation via the probe cables. In this way, there is no need for any infrastructure operation in the tank manhole and its surroundings in e-Valve applications.