Harvey Hv3 Water Softener Installation Manual Best Jun 2026

Route this drain hose to a waste pipe, standpipe, or washing machine trap.

Scan the unique QR code printed under the i-Lid label or enter the DSN/SSN manual codes.

The lid must be accessible to replace salt blocks. 3. Tools Required Pipe cutter or hacksaw Spanners/Adjustable wrench Measuring tape Plumbers' grease/silicone spray Bucket and rags Step-by-Step Harvey HV3 Water Softener Installation Guide harvey hv3 water softener installation manual

The manual also contains a QR code (or URL) to download a maintenance log sheet and a video guide for seal replacement.

The manual is clear: the HV3 is low-maintenance, but not no-maintenance. Route this drain hose to a waste pipe,

The INLET and OUTLET are clearly marked on the control valve. Reversing them will destroy the softener’s internal components.

Yes, to a limited extent. The white flexible drain hose can run uphill internally for a maximum of 1 metre, but only if your incoming water pressure exceeds 3 bar. If your pressure is lower, the drain hose must maintain a downward slope. The INLET and OUTLET are clearly marked on the control valve

Most likely because the hardness dial is set too high, or the water meter is sticking. See Section 6 of the manual for recalibration.

The key to a successful installation is careful preparation: testing your water pressure, selecting the right location, ensuring proper drain and overflow connections, and using only the correct block salt. With attention to these details, your Harvey HV3 will provide continuous soft water, protect your home from limescale, and reduce your household's environmental impact through its efficient, non-electric operation.

The Harvey HV3 typically has flexible hoses with 15mm compression fittings.

The Harvey HV3 is compatible specifically with block salt, not granular or tablet salt, which is important to remember for ongoing maintenance. The unit operates via ion exchange technology, passing water through resin tanks that remove the magnesium and calcium minerals that cause hard water and limescale.