Automatic rainwater pump Wilo-Extract FIRST 303 EM/A. Hmax=37.1 m. Motor 0.75 kW. Outlet connection G 1 inch 6093855

Automatic rainwater pump – efficient resource utilization

The Wilo-Extract FIRST 303 EM/A is a reliable solution for extracting rainwater from cisterns and tanks, ideal for both domestic and garden applications. The pump is designed for easy installation and operation, offering automatic on/off operation depending on water demand. This ensures convenience and savings, allowing intelligent use of the free resource of rainwater.

Design and performance

This submersible multistage pump is characterized by a compact design, allowing installation even in places with limited access. Made of high-quality stainless steel (grade 304 – 1.4301) and a polypropylene (PP-GF) impeller, it guarantees durability and corrosion resistance. The 0.75 kW motor provides a flow rate of up to 6.6 m³/h, and the maximum head is as high as 37.12 meters. Integrated motor thermal protection and dry-running detection ensure safe and reliable operation. Additionally, periodic pump start-up (every 24 hours) prevents the impeller from blocking due to potential contamination.

Application and benefits

The Wilo-Extract FIRST pump will work in many situations:

• Garden irrigation: Efficient use of rainwater for plant irrigation, reducing water consumption from the water supply.
• Toilet flushing: Supplying toilets with rainwater, which translates into savings on water bills.
• Laundry: Possibility of using rainwater for washing (after appropriate filtration).
• Car washing: An ecological solution for washing vehicles without consuming valuable drinking water.
• Automatic operation: The built-in controller automatically turns the pump on and off depending on water demand, ensuring ease of use.
• Easy installation: The pump is ready to use immediately after connection – a 10-meter power cable with a mains plug is included.
• Safety: Dry-running protection and motor thermal protection protect the device from damage.
• Durability: The materials used, resistant to corrosion, guarantee a long service life of the pump even in difficult operating conditions.

The pump has a protection class of IP68, which means full protection against immersion in water and against the ingress of solids. The maximum sand content in the pumped water can be up to 20 g/m³. The 1-inch G outlet connection facilitates connection to the water installation. The rated current of the pump is 4.9 A at a voltage of 230 V and a frequency of 50 Hz.