Apex RainAid 20mm Retention Tank Automatic Float Valve – Mains Backup Valve

The Apex RainAid 20mm Retention Tank Automatic Float Valve is a specialised mechanical valve designed to provide mains water backup for rainwater harvesting systems. Installed in a retention tank, the valve automatically maintains a minimum water level by switching to mains supply whenever stored rainwater drops below the preset level, ensuring continuous water availability without electrical controls.

Engineered for domestic and commercial rainwater systems, the RainAid valve operates on a full on, full off principle, reducing pump cycling and improving energy efficiency. This ensures reliable supply to non-potable outlets such as toilets, laundry, and garden irrigation during periods of low rainfall. The adjustable water level feature allows optimisation for system performance while helping extend pump life.

Constructed from UV-stabilised materials and designed for direct mains connection, the valve is built for long-term outdoor use. With an integral strainer and high pressure rating, it provides dependable, maintenance-free operation in retention tanks supplying backup water to rainwater reuse systems.

FEATURES

• Automatic mains backup for rainwater retention tanks
  
• Maintains minimum water level during low rainfall
  
• Full on, full off mechanical operation
  
• No electrical power or float switches required
  
• Adjustable water level to optimise system performance
  
• Reduces pump cycling and energy consumption
  
• UV stabilised construction for outdoor durability
  
• Integral strainer for debris protection
  
• Suitable for non-potable supply systems
  
• Designed for domestic and commercial rainwater use