A bypass valve is essential. It allows you to divert water away from the softener if you ever need to perform maintenance or if you want hard water for gardening.
Slowly open the mains stopcock to refill the system and test your newly installed pipework. Check all connections thoroughly for any signs of leakage—pay particular attention to the bypass valve, the hose connections at the softener rear, and any newly soldered or fitted pipe joints.
: The Harvey HV3's twin-cylinder design ensures a continuous supply of soft water—unlike single-tank electric softeners that supply hard water during regeneration cycles.
You can also try forcing a manual regeneration by depressing and turning the white dial on top of the unit. You should hear a click when it engages. If manual regeneration works but automatic regeneration doesn't, the cogs that detect water flow may need replacement. harvey hv3 water softener installation manual
Before you begin the installation, make sure you have:
Place a valve between the inlet and outlet tees. When closed, water flows through the softener; when open, it bypasses it. 4. Connecting the HV3 Unit The HV3 uses high-quality braided hoses for flexibility.
Ensure the central bypass valve is tightly closed so water is forced through the unit. Blocked drain line or high water pressure. A bypass valve is essential
Before unpacking the unit, verify that your installation site meets the necessary technical requirements. Missing these prerequisites can lead to drop-in water pressure or damage to the unit. Technical Specifications
The (often referred to simply as the Harvey Cub or Block Salt Softener) is a twin-cylinder, non-electric softener. Because it uses block salt and operates via water pressure rather than electricity, the installation focuses heavily on plumbing logistics.
Keep the inlet and outlet valves , and open the bypass valve to restore temporary hard water supply to the house while you connect the unit. 3. Connecting the Softener Check all connections thoroughly for any signs of
While there is no specific single public manual exclusively for a " Harvey HV3
If your water doesn't feel soft, first check that there's salt in the compartment. If salt is present, verify that the bypass is in the Service position (red plunger pushed in) and not in Bypass mode (blue plunger pushed in). Also check that all valves on the pipework are fully open.
Open a nearby cold water tap (such as the kitchen sink) for 2 to 3 minutes to purge air pockets from the cylinders. The water may initially look discolored or milky; this is normal air displacement and will clear quickly.