Underground Water Cistern Tank Design With Two 2HP Pump System

This underground water cistern design drawing illustrates the structural layout and hydraulic system used for storing and distributing water from a below-ground reservoir. The drawing shows a reinforced concrete underground cistern tank connected to a pumping system equipped with two pumps of 2 HP capacity each from the ESPA brand. The hydraulic system is designed to deliver a water flow rate of approximately 60 liters per minute, ensuring a continuous water supply to the building's distribution network. The section drawing highlights the internal tank structure, including reinforced concrete walls, base slab, and protective internal plaster layers used to maintain water storage durability. A floating valve mechanism is installed inside the cistern to control the water inlet level automatically and prevent overflow.