DOUBLE WATER VENDING MACHINE

Design and Structure:  
Dual Dispensing Outlets: This machine features two distinct outlets, enabling users to select from two different types of water. For instance, one outlet may dispense purified water that has undergone several filtration processes, while the other could provide mineral-enriched water for enhanced health benefits, or it might offer both hot and cold water based on user preference.

Filtration System: Typically, these machines are equipped with a comprehensive multi-stage water purification system that includes:

- Sediment filters: Designed to eliminate larger particles such as sand, dirt, and rust.
- Carbon filters: Effective in removing chlorine, unpleasant odors, and organic materials.
- Reverse osmosis (RO) or ultrafiltration (UF) membranes: Capable of filtering out dissolved salts, bacteria, viruses, and other harmful contaminants.
- UV sterilization or ozone treatment: Ensures any remaining microorganisms are eradicated, making the water safe for consumption.

Storage Tanks: The machine is fitted with two water storage tanks—one for each type of water (e.g., mineral and purified or hot and cold). These tanks are typically constructed from food-grade materials like stainless steel or compliant plastic, adhering to safety standards.

User Interface: The vending machine boasts a user-friendly interface, often featuring buttons or a touchscreen for selecting the type of water, desired quantity (in liters or gallons), and sometimes additional options like rinsing sterilized bottles.

Payment Systems: Users can pay using various methods, including coins, mobile payment options, or contactless cards. Some machines may also support prepaid cards or digital wallets for extra convenience.

Bottle Filling Station: The machine includes a designated area where customers can place their bottles for refilling. Depending on the model, it can accommodate a range of bottle sizes, from small water bottles to larger jugs.