Welcome! This detailed manual provides essential information for optimal operation, maintenance, and troubleshooting of your Hague WaterMax water softening system.

The Hague WaterMax represents a significant advancement in home water treatment technology. Designed for efficiency and longevity, this system delivers consistently soft water, protecting your plumbing and appliances from scale buildup.
Unlike traditional systems, the WaterMax utilizes a unique, self-cleaning filter bed, minimizing maintenance and maximizing resin efficiency. This innovative design extends the life of the system and reduces salt consumption.
This manual serves as your complete guide to understanding, installing, operating, and maintaining your Hague WaterMax. We’ll cover everything from initial setup and programming to routine maintenance and troubleshooting common issues. Familiarizing yourself with this information will ensure years of reliable performance and optimal water quality.
Hard water contains high concentrations of minerals, primarily calcium and magnesium. These minerals cause scale buildup in pipes, reduce appliance efficiency, and can affect soap’s ability to lather. Water softening removes these hardness minerals.
The Hague WaterMax employs ion exchange, a process where hardness minerals are exchanged for sodium or potassium ions. As hard water flows through a resin bed, these minerals are attracted to the resin, effectively softening the water.
The WaterMax distinguishes itself with its advanced resin regeneration process. It doesn’t just soften water; it actively cleans and reconditions the resin, ensuring consistently high-quality softened water and extending the system’s lifespan, unlike many conventional models.
Ion exchange, the core of water softening, relies on specialized resin beads with a negative charge. Positively charged hardness ions (calcium and magnesium) are more strongly attracted to the resin than sodium ions.
As hard water passes through the resin tank, calcium and magnesium displace the sodium ions, becoming trapped by the resin. This results in “soft” water containing sodium. Eventually, the resin becomes saturated with hardness minerals.
Regeneration restores the resin’s softening capacity. A concentrated salt (brine) solution is flushed through the resin, reversing the ion exchange process. Sodium ions displace the calcium and magnesium, which are then flushed down the drain, renewing the resin.

Hague WaterMax systems deliver unparalleled water quality and efficiency. Unlike traditional systems, WaterMax utilizes a unique one-piece, non-corrosive tank construction, ensuring long-lasting durability and preventing leaks.

Demand-Initiated Regeneration (DIR) optimizes salt and water usage, regenerating only when necessary based on actual water consumption. This saves money and reduces environmental impact.
Enjoy benefits like extended appliance lifespan, reduced soap consumption, softer skin and hair, and brighter, cleaner laundry. The WaterMax also features a self-cleaning brine tank and customizable settings for personalized water treatment. Experience the Hague difference – superior performance and lasting value!
Your Hague WaterMax system comprises several key components working in harmony. The Resin Tank, typically a tall, cylindrical vessel, houses the resin beads responsible for softening water. Adjacent to it is the Brine Tank, a smaller container storing salt brine for regeneration.
The Control Valve, mounted on top of the resin tank, orchestrates the entire softening process, managing regeneration cycles and water flow. You’ll also find Inlet/Outlet Fittings connecting the system to your plumbing, and an Injector/Venturi assisting in brine draw.
Familiarizing yourself with these parts is crucial for maintenance and troubleshooting. Refer to the diagram included in this manual for visual identification of each component.

The Resin Tank is the heart of your Hague WaterMax system, usually the largest component and prominently positioned. Its primary function is to remove hardness minerals – calcium and magnesium – from your water supply. This is achieved through ion exchange using specialized resin beads inside the tank.
As hard water flows through the resin bed, the beads attract and hold onto the hardness minerals, releasing sodium ions in return, effectively ‘softening’ the water. The tank’s location is typically near the main water supply, facilitating easy connection to incoming water lines. Regular regeneration replenishes the resin’s softening capacity.
The Brine Tank, often a smaller tank alongside the Resin Tank, holds a highly concentrated salt solution – the brine. Its crucial function is to regenerate the resin beads within the Resin Tank, restoring their ability to soften water. During regeneration, the brine solution flushes through the resin, replacing the accumulated hardness minerals with sodium.
Typically located near the Resin Tank and Control Valve, the Brine Tank requires periodic salt replenishment. The tank’s size varies depending on your water hardness and system model. Maintaining an adequate salt level is vital for consistent water softening performance and preventing system malfunctions.
The Control Valve is the “brain” of your Hague WaterMax system, orchestrating the entire softening and regeneration process. It manages water flow, monitors water usage, and initiates regeneration cycles based on pre-programmed settings. Key components include the metered valve (tracking water usage), the regeneration timer, and various ports for water inlet, outlet, brine draw, and drain line connections.
The valve also houses the motor that controls the valve’s internal mechanisms. Understanding its function and identifying these key parts is essential for troubleshooting and performing necessary maintenance. Regular inspection ensures optimal performance.


Proper installation is crucial for the efficient operation of your Hague WaterMax. Before beginning, carefully review all included documentation and local plumbing codes. Ensure you have adequate space, access to water and drain lines, and a suitable electrical outlet nearby. This section details the necessary steps for a successful setup, including verifying water pressure, preparing the installation area, and assembling the system components.
Incorrect installation can lead to leaks, reduced performance, or even system damage. If you are uncomfortable with any aspect of the installation process, consult a qualified plumber.
Before you start the installation process, ensure you’ve completed this checklist. First, verify your incoming water pressure is between 20 and 80 PSI. Next, confirm you have a grounded 120V electrical outlet within 6 feet of the unit. Locate a suitable drain nearby for the brine discharge line – a floor drain is ideal.
Also, check for adequate space around the system for maintenance access. Gather necessary tools: pipe wrench, Teflon tape, screwdriver, and level. Finally, inspect all components for shipping damage and familiarize yourself with the parts list in this manual.
Begin by shutting off the main water supply. Connect the inlet line to the WaterMax’s “IN” port, using Teflon tape on all threaded connections to prevent leaks. Attach the outlet line to the “OUT” port. For the drain line, connect a ½-inch or ¾-inch flexible hose to the drain valve, ensuring a secure fit.
The drain line must have an air gap to prevent back-siphonage; do not submerge the drain line end. Securely fasten all connections to avoid strain on the system. Slowly turn the main water supply back on, checking for any leaks at each connection point.

Accessing the programming menu is typically done by pressing and holding the “Select” or “Program” button on the control valve panel. Navigate through the options using the up and down arrow keys. Key settings include regeneration time, salt dosage, and reserve capacity.
Carefully review each setting before confirming. Incorrect programming can lead to inefficient softening or system malfunctions. Refer to the detailed settings guide within this manual for optimal values based on your water hardness. Save your changes by pressing the “Select” or “Program” button again;

Accurate time and date settings are crucial for proper regeneration scheduling. Within the control valve’s programming menu, locate the “Time” and “Date” options. Use the arrow keys to adjust the hour, minute, month, day, and year. Confirm each selection by pressing the “Select” or “Program” button.
Ensure you set the correct AM or PM designation. The system utilizes this information to initiate regeneration cycles at the programmed time. Double-check your entries before saving to avoid scheduling issues. A properly set time ensures efficient and consistent water softening performance.
Regeneration cycles remove accumulated hardness minerals. Access the “Regeneration” menu on your control valve. You can typically program the frequency based on days between regenerations or water usage (gallons). Consider your household’s water consumption and water hardness level when setting this parameter.
Options often include immediate regeneration, delayed regeneration, and regeneration based on a schedule. Select the mode that best suits your needs. A typical setting is every 3-7 days. Monitor your water hardness regularly to fine-tune the regeneration schedule for optimal efficiency and water quality.
Salt dosage controls the brine solution’s concentration used during regeneration. Access the “Salt Usage” or “Brine Draw” settings within the control valve’s programming menu. Lower settings conserve salt but may reduce softening effectiveness, while higher settings ensure thorough cleaning but increase salt consumption and wastewater.
Start with the manufacturer’s recommended setting, then adjust incrementally based on water hardness test results. Regularly test your softened water to confirm adequate hardness removal. A properly adjusted salt dosage balances efficiency, cost, and optimal water quality. Incorrect settings can lead to scale buildup or inefficient operation.
Consistent maintenance ensures peak performance and extends the life of your Hague WaterMax. Regularly check salt levels in the brine tank, aiming for at least half-full. Inspect the system for leaks around connections and the valve. Periodically clean the brine tank to prevent salt bridging and buildup.
Troubleshooting often begins with verifying power supply and water pressure. If issues persist, consult the error code section of this manual. For complex problems, contact a qualified water treatment professional. Preventative care minimizes downtime and maintains consistently soft water.
Maintaining adequate salt levels is crucial for effective water softening; Use only high-quality water softening salt – rock salt, solar salt, or evaporated salt are suitable. Avoid salt with red or orange coloring, or those containing anti-caking agents not intended for water softeners.
Fill the brine tank approximately halfway with salt. Do not overfill, as this can cause bridging. Regularly check the salt level, especially during periods of high water usage. A consistent salt supply ensures uninterrupted regeneration cycles and consistently soft water throughout your home.
Periodic cleaning of the brine tank prevents salt bridging and ensures optimal system performance. At least annually, or more frequently with hard water, drain any remaining brine water. Remove any built-up salt deposits or sediment from the bottom of the tank using a wet/dry vacuum or by manually scooping it out.

Inspect the brine well within the tank for obstructions and clear any debris. Rinse the tank thoroughly with water before refilling with fresh salt. A clean brine tank promotes efficient salt dissolution and consistent regeneration, maximizing your WaterMax’s effectiveness.
The injector and venturi are crucial for creating the necessary suction during the regeneration cycle; Annually, or if you notice reduced water flow or softening efficiency, inspect these components for mineral buildup or debris. Carefully disassemble them, following the system’s diagram.
Soak the injector and venturi in a solution of warm water and a mild detergent, or a specialized cleaning solution designed for water softening systems. Use a small brush or pin to clear any obstructions in the small openings. Rinse thoroughly and reassemble, ensuring proper alignment before reinstalling.
Encountering problems? Here’s a quick guide to resolving frequent issues. Hard water after regeneration: Verify sufficient salt levels and proper salt dosage settings. Check for brine tank clumping. Low water pressure: Inspect the bypass valve to ensure it’s fully open. Examine the injector and venturi for blockages.
Error codes: Refer to the “Error Codes & Their Meanings” section for specific troubleshooting steps. No regeneration: Confirm the control valve is programmed correctly and the system isn’t in bypass mode. If issues persist, contact a qualified service technician.
Experiencing hard water despite recent regeneration? Several factors could be at play. First, verify adequate salt levels within the brine tank – insufficient salt hinders the softening process. Check your programmed salt dosage; it may be set too low for your water hardness. Inspect the brine tank for salt bridging or clumping, preventing proper brine draw.
Also, examine the injector for blockages, as this restricts brine flow. Finally, confirm the resin tank isn’t exhausted prematurely, indicating a potential resin issue. If problems continue, professional assistance is recommended.
Noticeably reduced water pressure? Begin by checking the bypass valve – ensure it’s fully open, allowing water to flow through the system, not around it. Inspect the control valve for any obstructions or debris buildup. Verify the resin tank isn’t excessively full of sediment, restricting water flow.
Also, examine the inlet and outlet connections for kinks or blockages in the water lines. A partially clogged household filter upstream of the WaterMax can also contribute to pressure loss. If the issue persists, consult a qualified plumber to rule out broader plumbing problems.
Your Hague WaterMax control valve displays error codes to signal potential issues. Code E1 indicates a communication failure between the valve and the control board – try a system reset. E2 signifies a flow meter error; check for obstructions. E3 points to a low salt level or brine tank issue – refill and inspect.
E4 suggests a valve motor malfunction, requiring professional service. E5 indicates a regeneration cycle error; ensure proper programming. Consult the full error code list in the appendix for a comprehensive explanation of all possible codes and recommended actions. Always disconnect power before attempting repairs.
Protect your Hague WaterMax from freezing temperatures! Begin by turning off the water supply to the unit. Next, bypass the valve to maintain water flow while servicing. Drain all water from the resin tank by initiating a manual regeneration cycle, then disconnecting the drain line.
Pour propylene glycol (RV antifreeze) into the brine tank to prevent freezing. Finally, disconnect and drain the control valve, adding antifreeze there as well. Do not use automotive antifreeze! This protects components during cold weather and ensures easy startup in the spring.