Onga Tankbuddy OTBIW450DR iWaterSwitch Kit 0.65kW Submersible Pump with Automatic Float Switch

The Onga Tankbuddy OTBIW450DR delivers a complete, quiet, and efficient pumping solution for homes using rainwater as their primary water source. Combining the proven performance of the Tankbuddy stainless steel submersible pump with the intelligent functionality of the iWaterSwitch, this package is purpose-built for domestic rainwater harvesting and clean water pressure systems.

The 0.65kW Tankbuddy operates silently while submerged in tanks, wells, or pump-out chambers. Its stainless steel body ensures corrosion resistance, while precision-moulded internals provide long-term efficiency and durability. The integrated automatic float switch enables hands-free pump operation, starting and stopping automatically based on water levels—ideal for water transfer, sump emptying, or when used with a pressure controller for household supply.

The iWaterSwitch further enhances the system by automatically switching between stored rainwater and mains water to maintain a constant supply. It prioritises rainwater use to maximise savings and features an LCD display showing real-time flow rate, pressure, current, and total rainwater usage. Demand-sensing technology prevents cycling, ensuring smooth operation and longer pump life.

APPLICATIONS

• Domestic pressure systems using rainwater and/or mains water
• Water transfer from tanks, wells, or pump-out chambers
• Sump emptying for clean water
• Rainwater harvesting for toilets, washing machines, car washing, and garden irrigation

KEY FEATURES

• Whisper-quiet performance – Submersible design keeps operation out of sight and earshot.
• Robust stainless steel build – Corrosion-resistant casing with precision-moulded internals for reliability.
• Automatic float switch – Hands-free start/stop control based on water level.
• Dual lip seal & insulated cable chamber – Added protection for longer pump life.
• Inbuilt thermal overload – Prevents motor damage from overheating.
• iWaterSwitch smart controller – Seamlessly switches between rainwater and mains supply, with real-time performance data on an LCD display.
• Demand-sensing control – Reduces pump cycling and wear.
  

SPECIFICATIONS

• Max Flow: 84 L/min
• Max Head: 27 m
• Motor Power: 0.65 kW
• Pump Type: Submersible with automatic float switch
• Construction: Stainless steel body, precision-moulded internals
• Controller: iWaterSwitch with LCD display and mains/rainwater auto-selection
• Power Supply: 240V single phase
• Thermal Overload Protection: Yes