A compact, tethered or wireless robot designed to clean domestic/industrial water tanks without human entry. The bot drives on the tank floor/walls, scrubs biofilm & algae, and vacuums sludge into a filter canister. A waterproof FPV camera with LEDs gives the operator clear visibility, while a handheld RC transmitter or phone app controls movement and cleaning tools. This improves hygiene, reduces downtime, and eliminates confined‑space risks.

Parts Used:

1. Chassis: waterproof, corrosion‑resistant (SS/HDPE/acrylic) with sealing gaskets
2. Drive System: DC gear motors with wheels/tracks (anti‑slip), motor mounts
3. Motor Driver: dual H‑bridge or ESCs (as per motors)
4. Scrubbing Module: rotating nylon/SS brush or side brushes (replaceable)
5. Suction/Vacuum Module: mini water pump + sludge inlet, inline filter/sediment bag
6. Onboard Controller: Arduino/ESP32 for motor & tool control
7. Communication:
8. Option A (Tethered): cable for power + analog video (simple & reliable)
9. Option B (Wireless): 2.4 GHz RC + 5.8 GHz FPV / Wi‑Fi camera (short range)
10. FPV Camera + LED Ring: waterproof enclosure for visibility
11. Power: Li‑ion/LiFePO4 battery (onboard) or external DC via tether
12. Sensors (optional): water temp, turbidity, depth/ultrasonic for obstacle/level
13. Frame Accessories: buoyant skids, wall rollers, intake strainer, cable strain‑relief
14. Control Station: RC transmitter or phone/tablet app; monitor/FPV goggles