Harvey Hv3 Water Softener Installation Manual [patched] Jun 2026

Install the unit as close as possible to the point where the main water supply enters the property.

Most installers create a loop using the provided bypass kit or standard plumbing valves.

Before you begin, ensure you have the necessary space and tools. The HV3 is designed to fit under most kitchen sinks. What’s in the Box? The Harvey HV3 unit. Two hoses (Inlet and Outlet). Instruction booklet. Tools You’ll Need: Pipe cutter or hacksaw. Adjustable spanners. Drill (if mounting on a wall or through a cupboard). PTFE tape. harvey hv3 water softener installation manual

Ensure the central bypass valve is tightly closed so water is forced through the unit. Blocked drain line or high water pressure.

Ensure the location is protected from frost and direct sunlight. Keep the unit within 2 meters of a suitable drain point. Step 2: Main Water Shutoff Turn off the main incoming water stopcock. Install the unit as close as possible to

Turn off the main stopcock valve for your property.

Ensure your mains water pressure is suitable. The system generally requires a minimum of 2.0 bar and can handle a maximum of 6.0 bar of pressure. The HV3 is designed to fit under most kitchen sinks

Cut into the rising main after the stopcock but before any branches to the rest of the house. Install the Tees: Fit the inlet and outlet tees.

By following this comprehensive guide, you can ensure a successful installation of the Harvey HV3 water softener and start enjoying the benefits of soft water.

Experienced plumbers and long-term owners often weigh in on the installation process described in the manual.