The pump mechanism of a hand pump with a reservoir typically comprises a handle, a piston, and valves.
The handle is manually operated by the user and provides the necessary force to activate the pump. The piston is housed within a cylinder and moves up and down when the handle is operated. It creates a suction effect, drawing water into the pump through an inlet valve.
The inlet valve allows water to flow into the pump during the upward stroke of the piston while preventing backflow during the downward stroke. The piston's downward stroke forces the water through an outlet valve and into the reservoir. The outlet valve ensures that water flows in one direction only, preventing any reverse flow.
The reservoir of a hand pump serves as a storage container for the extracted water. It is typically made of durable materials such as plastic, metal, or concrete, depending on the application and desired capacity. The reservoir is designed to hold a specific volume of water and may have additional features like a fill gauge to monitor water levels.
Hand pumps with reservoirs are commonly used in areas where access to a reliable water supply is limited or nonexistent.
They are particularly useful in rural communities, emergency situations, or remote locations. These pumps provide a self-sustaining water source that doesn't rely on electricity or other external power sources.
The size and capacity of hand pumps with reservoirs can vary depending on the specific requirements. Some models are designed for personal use, providing water for household chores, drinking, and sanitation. Others are larger and more robust, capable of serving entire communities or small agricultural operations.
Maintenance of hand pumps with reservoirs is relatively simple. Regular inspections and cleaning of the pump mechanism are essential to ensure proper functioning. The reservoir should also be periodically checked for any signs of damage or leaks. In some cases, it may be necessary to treat the stored water to ensure its safety and prevent contamination.