Hyjet – HHR Submersible series

The Hyjet HHR370S is a submersible rains/mains changeover pump designed to switch between rainwater and mains water automatically. It provides a reliable water supply for household or light commercial use. With its smart design, it saves water and lowers water bills.

This pump is perfect for use in rainwater harvesting systems. It works well in areas where people want to use tank water first and mains water only when needed.

Smart Water Switching System

One of the best features of the HHR370S is its automatic changeover valve. This system detects when the tank is low. When rainwater is unavailable, it automatically switches to mains water. Once the rainwater tank refills, it switches back again.

This change happens without needing any manual control. The user does not need to worry about switching sources.

How It Works

This pump draws water from a rainwater tank to supply toilets, washing machines, or irrigation systems. When the tank runs dry, the pump switches to mains water. This keeps your water supply going with no interruptions.

Once rain refills the tank, the pump switches back to rainwater. This reduces mains water use and saves money.

Reliable and Quiet Performance

The Hyjet HHR370S runs quietly and smoothly. It operates without loud vibrations or disruptive noise. This makes it ideal for homes where noise is a concern.

Despite being quiet, the pump delivers strong and steady water pressure. It can run multiple taps or appliances at once, depending on the setup.

Submersible Design for Tank Use

This pump is fully submersible, which means it sits inside the water tank. Submersible pumps are more efficient because they push water rather than pull it. As a result, they reduce pressure loss.

Submersible designs also protect the motor from overheating and exposure. Being inside the tank helps keep the pump cool and safe.

Durable Construction for Long-Term Use

The HHR370S is built with stainless steel and other corrosion-resistant materials. These parts prevent rust and wear, even when used in damp environments. This construction means a longer lifespan and less maintenance over time.

The pump also includes thermal overload protection. This feature protects the motor if the pump overheats or runs dry. It shuts the motor off before damage can occur.

Efficient Motor Performance

The pump comes with a 370-watt motor, which balances energy use and output. It uses low power while delivering high flow.

This efficient motor saves electricity and keeps running costs low. It also works well with pressure controllers or switch systems, which help manage water flow better.

Water Pressure and Flow

The Hyjet HHR370S can deliver up to 45 litres per minute, depending on system pressure. This flow rate is enough for small to medium homes using rainwater for toilets, laundry, or garden taps.

It can also push water up to 28 metres head, making it suitable for homes with multiple levels or longer pipe runs.

Automatic Operation with No Effort

The built-in float switch activates the pump when water is needed. Once the demand stops, the pump shuts off. This automatic control helps prevent wear and saves energy.

Moreover, the automatic changeover valve means the user doesn’t need to adjust any settings. The system takes care of itself.

Easy Installation

Installing the HHR370S is simple and doesn’t need complex tools. It suits new homes and upgrades to existing rainwater systems.

The unit includes all major components in one setup. This makes the system neat, tidy, and easy to connect. Most users can install it with basic plumbing skills.

Applications

The Hyjet HHR370S is great for many everyday uses. Some common applications include:

• Toilet flushing in homes and offices

• Washing machines that use tank water

• Garden watering with stored rainwater

• Small irrigation systems

• Backup water supply in case of low mains pressure

The system keeps mains water ready but only uses it when needed. This setup is smart and sustainable.

Why Use a Rains/Mains Changeover System?

More people are now using rainwater to reduce mains water use. This helps save money and supports the environment. A changeover pump like the HHR370S makes it easier.

Without this system, people must manually switch water supplies. That’s not always convenient or safe. The automatic changeover system takes away the hassle and ensures your home always has water.

Key Features at a Glance

• 370W energy-efficient motor

• Fully submersible design for in-tank use

• Automatic changeover between rain and mains water

• Thermal overload protection for safety

• Stainless steel housing to resist corrosion

• Max head of 28 metres for good pressure

• Flow rate up to 45 L/min

• Quiet operation

• Float switch included

• Simple installation

Maintenance and Support

The HHR370S requires very little upkeep. The motor is sealed and protected from dirt and dust. The submersible design means fewer moving parts get exposed.

Still, it’s good practice to check the pump yearly. Make sure there’s no debris in the tank and the float switch moves freely.

Hyjet also offers product support and replacement parts. This helps ensure long-term operation and peace of mind.

The Hyjet HHR370S is a smart choice for anyone using rainwater at home. Its automatic changeover system, quiet operation, and easy setup make it ideal for homeowners who want to save water.

Built to last, the HHR370S helps reduce water bills and improve efficiency. Whether for new builds or upgrades, this pump is ready to deliver reliable, steady water—rain or shine.

Pump body: AISI 304 Stainless steel

Motor: Stainless Steel AISI304

Impeller: Technopolymer

Motor: IP68

Double Mechanical seal: Silicon carbide – graphite/ceramic – graphite

Cooled motor (by water): class F and thermal protection

Electric power cable H07RN 5m with 3-pin