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Why This System Fits
The Fleck 5600 L-Back Timer is designed to effectively address common water quality issues in this area, such as hardness and mineral build-up. With its advanced timer and metering capabilities, this system ensures optimal operation, providing you with consistently treated water. It effectively balances water chemistry to reduce scale formation and improve the taste and quality of your water. The equipment is compact yet powerful, making it suitable for various household sizes. Offering a highly efficient design, it uses salt for regeneration, translating to low running costs without compromising performance. Additionally, the system is engineered to provide long-lasting reliability, giving you peace of mind as you enjoy softer, cleaner water for all your household needs.
Tools and Preparations Needed
- Adjustable wrench
- Screwdriver (typically Phillips head)
- Pipe cutter or saw (if needed for inlet/outlet adjustments)
- Bypass valve (if not already installed)
- Water supply shut-off valve
- Drain line connection (if applicable)
- Fleck 5600 L-Back Timer manual (included with purchase)
Step 1: Power Down and Isolate Water Supply
Before commencing installation, turn off the main water supply to your treatment system. If your system includes a bypass valve, activate it to divert water away from the unit, ensuring a dry and safe working environment. This precaution prevents water damage and facilitates easier connections.
Step 2: Remove Existing Control Valve (If Replacing)
If replacing an existing timer or control valve, disconnect the current device carefully. Drain any residual water from the system according to the existing manufacturer's instructions. Utilize the adjustable wrench to loosen fittings and remove the old control valve, making space for the Fleck 5600 L-Back Timer.
Step 3: Mount the Fleck 5600 L-Back Timer
Position the Fleck 5600 L-Back Timer onto your existing valve manifold or bypass assembly. Ensure that the flow arrows on the valve body align correctly with the inlet and outlet pipes. Secure the unit tightly using the appropriate fittings and the adjustable wrench, taking care not to overtighten and cause damage.
Step 4: Connect Inlet, Outlet, and Drain Lines
Attach the incoming water supply line to the inlet port of the control valve. Connect the outlet port to your water softener or filter system. If your setup includes a drain line, connect it to the designated drain port on the control valve, ensuring a proper and secure connection to facilitate backwash and regeneration waste disposal.
Step 5: Power Connection and System Check
Once all plumbing connections are secured, reconnect the power supply to the control valve. The Fleck 5600 L-Back Timer is mechanical, so no electrical wiring is necessary. Turn on the main water supply and activate the bypass valve if used. Check for leaks around connections and fittings—tighten as necessary to prevent water loss.
Step 6: Initial Setup and Programming
With the system pressurized and water flowing, proceed to program the Fleck 5600 L-Back Timer. The timer features a user-friendly interface where you can:
- Set the current time — use the dial and indicator to align with the clock mechanism.
- Select regeneration days — decide which days the system should regenerate, typically based on water usage patterns.
- Adjust regeneration cycles — set the duration of brine and rinse cycles as needed, following manufacturer recommendations.
Consult the included manual for detailed programming instructions, which often involve rotating the dial to specific positions and turning adjustment screws accordingly.
Step 7: Final System Check and Testing
After programming, verify that the control valve is functioning correctly. Observe the regeneration cycle, if manually initiated from the control dial, to ensure proper operation. Check for leaks once more during the cycle and tighten connections if necessary.
Regular Maintenance and Troubleshooting Tips
- Perform periodic checks on fittings to prevent leaks.
- Monitor system performance and regenerate on scheduled days.
- Referring to the manual, troubleshoot issues such as improper programming or failure to regenerate, ensuring maintenance is straightforward and effective.


