RainAid Automatic Rainwater to Mains Water Backup Valve

The RainAid® Automatic Rainwater to Mains Water Valve provides a reliable backup water supply for rainwater harvesting systems. When rainwater levels in your tank drop below demand, the RainAid valve automatically switches from rainwater to mains water, ensuring a continuous supply for everyday non-potable applications.

This rainwater harvesting backup valve is ideal for homes and buildings using collected rainwater for toilets, washing machines, garden irrigation, and other non-drinking water uses. By automatically maintaining tank levels, the RainAid helps keep your rainwater system operating efficiently even during dry periods.

Designed for long-term outdoor use, the valve is UV stabilised to withstand sunlight and weather exposure. Installation is quick and straightforward, and the system requires no electrical power, making it a dependable and low-maintenance solution for rainwater tank systems.

The RainAid valve is also standards-approved for mains water connection, ensuring compliance with water supply regulations.

Under normal conditions, your rainwater tank fills naturally from rainfall. If the water level drops below a preset level, the RainAid® valve automatically opens and refills the tank using mains water until the correct level is restored.

The valve operates with a 4-inch differential between open and closed positions, helping maintain consistent water levels within the tank and preventing unnecessary cycling.

Key Features

Automatic rainwater to mains water changeover valve
Designed for rainwater harvesting systems
Maintains water supply during low rainfall or high demand
Suitable for toilets, washing machines, and garden irrigation
UV stabilised for outdoor durability
No electrical supply required
Standards approved for mains water connection
4″ differential between valve open and closed positions
Simple installation and low maintenance

Ideal For

Domestic rainwater harvesting systems
Rainwater storage tanks
Garden irrigation systems
Toilet flushing systems
Laundry water supply
Sustainable water conservation systems

Rainaid Valve 3/4″ – APEX