Quick Answer
The efficiency of a foot-pump sink is heavily influenced by its installation location, particularly in terms of water pressure and flow rate, which can be affected by factors such as proximity to the water storage tank and elevation differences.
Site Selection and Orientation
When selecting a location for a foot-pump sink, it’s essential to consider the site’s orientation and elevation. Ideally, the sink should be positioned at a lower elevation than the water storage tank to ensure a steady water flow and pressure. A gentle slope or declination of 1-2% is recommended to facilitate water flow and prevent back-siphoning. Additionally, the sink should be installed in a shaded area to prevent direct sunlight from affecting the pump’s performance and longevity.
Water Pump Sizing and Pressure
The size and type of foot-pump used will also be influenced by the installation location. A larger pump may be required for a location with a greater elevation difference or longer water supply lines. It’s recommended to size the pump based on the required flow rate and pressure, taking into account the friction losses in the supply lines. A general rule of thumb is to size the pump for a pressure of 10-15 psi at the point of use, with a flow rate of 2-5 gallons per minute (GPM) for a standard foot-pump sink.
Find more answers
Browse the full Q&A library by topic, or jump back to the topic this question belongs to.