Compact DC Foam and Liquid Pump for DIY Automatic Soap Dispensers and Sprayers A small, selfpriming DC pump designed for reliable foam and liquid dispensing in custom hand washers and spraying devices. Operates on lowvoltage DC and uses a compact 310 motor form factor for easy integration into DIY projects. Key benefits Selfpriming design: draws liquid without manual priming so setups start quickly and stay ready for use. Lowvoltage operation: runs on DC 3V to 3.7V power sources for simple battery or small power supply use. Compact and lightweight: 310sized motor footprint fits tight housings and handcrafted enclosures. Versatile dispensing: designed for soap foam generation and liquid spraying tasks, suitable for a range of lowviscosity cleaning solutions. Easy to integrate: straightforward wiring and plumbing for DIY automatic soap dispensers, hand washers, and small spraying machines. Reliable performance: steady flow and repeatable pulses improve foam consistency and reduce overflow or splashing. Features and specifications Voltage: DC 3V to 3.7V operation. Motor size: small 310 form factor, compatible with many DIY mounting setups. Function: selfpriming pump capable of producing foam and dispensing liquid; suitable for automatic soap dispensing and spraying applications. Suitable liquids: liquid soap, foaming solutions, mild detergents, and other lowviscosity cleaning fluids. Installation: compact profile for easy placement inside custom housings or retrofit into existing dispensers. Performance notes Designed for lowpower projects where portability or battery operation is desired. Produces consistent foam output when paired with appropriate foaming cartridges or mixing chambers. Ideal for intermittent dispensing cycles typical of automatic hand washers and touchless dispensers. Typical use scenarios Home sink automatic soap dispenser: build or a touchless dispenser for kitchen or bathroom sinks using a 3V or 3.7V battery pack for power. Workshop or garage hand washer: integrate into a portable hand washing station where compact size and battery operation are beneficial. DIY foaming sprayer or small cleaning machine: add foam generation to smallscale sprayers for car detailing, pet cleaning, or equipment rinsing using lowviscosity solutions. Why choose this pump for your project This small 310 DC pump is tailored for makers and technicians who need a compact, lowvoltage, selfpriming solution for foam and liquid dispensing. Its compatibility with common lowvoltage supplies and straightforward integration make it suitable for retrofit work and DIY designs where consistent foam output and compact packaging matter. Notes for installers Verify compatibility of your liquid with pump materials and test with small quantities before continuous use. Match the supply voltage to the rated DC 3V to 3.7V range to ensure expected performance. Use appropriate tubing and secure mounting to prevent leaks and vibration during operation.