Here are 25 Water Management Working Model Ideas — creative, practical, and perfect for school exhibitions , science fairs, and YouTube videos.

1. Rainwater Harvesting Model
Shows rooftop collection → pipe → filter → storage tank.
2. Drip Irrigation System
Conserves water using controlled slow release. Use IV tubes or straws.
3. Sprinkler Irrigation Model
A rotating sprinkler made with bottle caps or syringes.
4. Groundwater Recharge Pit
Layers of gravel, sand, soil → recharge borewell or groundwater.
5. Greywater Recycling System
Reuse bathroom/kitchen water for gardening after basic filtration.
6. Water Purification Model (Sand–Charcoal Filter)
Demonstrates 4-layer natural purification.
7. Smart Water Level Indicator
LED/buzzer alerts when tank is full or empty.
8. Automatic Water Pump Controller
Pump turns ON/OFF using float sensors or switches.
9. Water Distribution System Model
Overhead tank → main pipeline → branches → houses.
10. Check Dam / Mini Dam Model
Shows water storage for irrigation and groundwater recharge.
11. Percolation Tank Model
Artificial pond storing rainwater to recharge wells.
12. Drip Irrigation + Fertigation Model
Fertilizer mixed with irrigation water for efficient farming.
13. Solar-Powered Water Pump
Uses solar panel to run a mini motor pump.
14. Smart Irrigation (Soil Moisture Sensor)
Pump starts only when soil is dry.
15. Fog / Atmospheric Water Harvesting
Shows how fog nets collect water droplets.
16. Condensation Water Collector
Solar still model using plastic sheet to condense water.
17. Water Wheel Model
Uses flowing water to generate mechanical energy.
18. Wastewater Treatment Plant Model
Primary → secondary → tertiary treatment with chambers.
19. Desalination Model (Salt Water to Fresh Water)
Evaporation + condensation using sunlight.
20. Leak Detection System
Buzzer/LED activates if water escapes pipeline.
21. Smart Water Meter Model
Shows water usage using a small flow meter or indicator.
22. Flood Control & Drainage System
Model of drains, channels, gates preventing waterlogging.
23. Artificial Wetland Purification
Plants + gravel filter wastewater naturally.
24. Water-Efficient City Model
Combines RWH, recycling, filtration, smart meters, irrigation.
25. Hydroelectric Power + Water Storage Model
Shows how dams store water while producing electricity.