PLASTIC RED FOOT VALVE

Function: It allows fluid (typically water) to flow in one direction (upward into the pump) and prevents it from flowing backward (backflow) when the pump is shut off.

Purpose: The primary purpose is to maintain the pump's prime, meaning it keeps the suction pipe full of water so the pump doesn't have to re-prime every time it starts, thus protecting the pump from running dry.

Strainer: It includes a mesh or screen to filter out large debris (sand, leaves, etc.) that could damage the pump components or clog the system.

Material: It is made of plastic, often PVC (Polyvinyl Chloride) or PP (Polypropylene), which provides corrosion resistance, durability, and a cost-effective, lightweight solution. The red color is purely a manufacturer's or supplier's choice for visibility or product branding