Purification Technology

Ensure the machine uses reliable filtration like RO (Reverse Osmosis), UV, UF, etc. For example, one manufacturer lists “Pre-Filtration (German Technology) + RO + UV Technology + Ozonation + Water Chiller + LED Technology”. apextechnology.co.in +2 Romegamart +2 Higher TDS water areas in India will likely require RO + UV for safe drinking water.

Capacity

The litres per hour (LPH) or litres per day output is key. As per a summary article:

• Basic 50-100 LPH: ₹55,000–₹85,000
• Advanced 250-500 LPH: ₹1,20,000–₹2,50,000+

Payment & Operation Mode

Many Water ATMs are coin, smart-card, or UPI operated. For example, one machine is “Coin & RFID Card Operated … Water ATM Machine (RO Plant and Chiller)”. +1 Decide whether you’ll need remote monitoring/GSM connectivity for operations, especially if in public/remote location.

Installation & Site Conditions

Check for:

• Source water quality (tap, raw, borewell)
• Power supply / solar backup (especially for remote areas)
• Chilling or heating (if you want cold water)
• Maintenance & filter changes