Increasing droughts torment farmers and ordinary home gardeners every summer. Almost every summer, municipal offices issue bans on using drinking water for garden irrigation. Often, there is nothing left to do but quietly watch the crops perish and hope for rain soon. This is why it is necessary to learn how to handle rainwater as efficiently as possible.

The Wilo RAIN 1 automatic pumping system with a self-priming pump for rainwater utilisation is designed for applications where drinking water is not required. Its compact design allows for easy and immediate connection and commissioning. Additionally, the system features automatic protective functions such as level monitoring and dry-running protection, constant pressure indication in the system, and a memory of the last 10 faults. In case of insufficient rainwater, the system switches to a secondary source.

A base frame with dampers reduces vibrations caused by the pump, ensuring quiet operation. An 11-litre pre-tank with a float valve and overflow sensor is installed on the pump.

Specifications

• power supply 230 VAC
• cable length 1.5 m
• max. operating pressure 8 bar
• suction height max. 8 m
• medium temperature 5...30 °C
• ambient temperature 5...40 °C
• 11-litre pre-tank

Features

• compact design
• all-in-one
• dry-run protection
• automatic operation

Usage

The system is suitable for family homes and small commercial buildings. Rainwater can primarily be used for garden watering. It can also be used for flushing toilets and washing clothes. It needs to be connected to the water supply system, but in such a way that rainwater does not mix with drinking water from the mains.

How does Wilo RAIN 1 differ from Wilo RAIN 3?

RAIN 1	RAIN 3
float switch	hydrostatic level sensor
cable can be extended	cable cannot be extended (max 20 m)
	range of advanced functions
	continuous tank volume measurement
	protective cover