This pipe must run to an outside wall. It is a safety feature in case the unit malfunctions; it ensures excess water exits the building rather than flooding your kitchen. 6. Commissioning the HV3
Once everything is connected, it’s time to start the system.
The Harvey HV3 is one of the most compact and efficient twin-tank water softeners on the market. Known for its non-electric design and continuous softened water supply, it’s a favorite for UK households. While we always recommend professional installation by a Harvey-trained engineer, this guide provides a comprehensive overview of the installation process for those looking to understand the manual requirements. 1. Pre-Installation Checklist harvey hv3 water softener installation manual
Because the HV3 is non-electric, it uses water pressure to regenerate. This requires two drainage lines. The Drain Line (High Pressure) Connect the 1/2" drain hose to the softener's drain outlet.
Ensure the arrows on the valves match the direction of the water flow. 4. Connecting the Hoses This pipe must run to an outside wall
If you notice a drop in pressure, check that the bypass valves are fully open.
Maintain an air gap of at least 20mm between the end of the hose and the water level in the trap to prevent back-siphonage. The Overflow Line (Gravity Fed) Connect the overflow hose to the side of the cabinet. Commissioning the HV3 Once everything is connected, it’s
You will need access to the rising main, a waste pipe, and an overflow point. 2. Positioning the Unit
Insert two blocks of Harvey salt into the front compartments. 7. Testing for Softness