Step 2 – Plumb the SoluCalc Unit

Plumbing Installation

• Shut off the main water supply.
• Drain pressure from the system.
• Cut the main pipe after the water meter and pressure reducer.
• Install the SoluCalc device inline, respecting the flow direction arrow on the housing.
• Add shut-off valves before and after the device for maintenance.
• Ensure tight, sealed connections (PTFE or compression fittings).
• Mount securely on the wall or support bracket.

Step 3 – Connect the CO₂ Supply

CO₂ System Connection

• Place the CO₂ cylinder upright, secured with a strap or bracket.
• Mount the pressure regulator onto the cylinder valve. Tighten with a wrench (do not over-tighten).
• Attach the CO₂ hose from the regulator outlet to the gas inlet on the SoluCalc device.
• Check hose fittings and O-rings for leaks.
• Open the CO₂ cylinder valve half turn to pressurize the system.

Step 4 – Power and Activation

Electrical Connection

• Plug the SoluCalc device into a 230 V AC power socket.
• The indicator light should illuminate, confirming power.
• The electronic controller will automatically detect flow once water is reopened.

Step 5 – Adjust the CO₂ Injection Pressure

CO₂ Pressure Adjustment

• Fully open a cold water tap in the house (to get dynamic water pressure).
• Read the water pressure (e.g. 3.0 bar).
• On the CO₂ regulator, turn the adjustment knob to set output 0.2 bar higher than water pressure (e.g. 3.2 bar).
• Let the water run a few seconds; verify CO₂ injection is active (sound or gauge movement).

Step 6 – Check the Water pH

pH Test & Fine Tuning

• Using pH strips or a pH meter, measure before SoluCalc (untreated water) and after SoluCalc (treated water).
• The difference should be ≈ 0.5 pH units (for example, 7.5 → 7.0).
• If ΔpH > 0.5, slightly reduce CO₂ pressure.
• If ΔpH < 0.3, increase pressure slightly.
• Ensure final pH ≥ 6.5 (never below).

Step 7 – Verify Operation

Final Check & Commissioning