Galcon Alternator Valve

Follow these steps to correctly install and program your alternator setup.

Step 1: Attach to Timer
Thread the female inlet of the Alternator Valve securely onto the bottom male outlet of your existing hose-end water timer.

Step 2: Connect Head Assemblies
Attach your filters, pressure regulators, and drip mainline tubing to the two male outlets on the bottom of the Alternator Valve.

Step 3: Program the Timer
Reprogram your timer to run twice as often. For example, to water both zones for 30 minutes every morning, set Start Time A for 6:00 AM (runs Zone 1) and Start Time B for 6:31 AM (runs Zone 2).

Step 4: Allow Recovery Time
Always ensure there is a minimum gap of one minute between the end of the first watering cycle and the start of the second to allow the internal mechanism to fully shift.

How does the Alternator Valve work without batteries?
It operates entirely on internal water pressure. Every time your upstream timer turns the water on, then off, internal mechanical gears shift the flow path to the opposite outlet for the next cycle.

Do I need a special timer for this to work?
No, you can use any standard single-station battery timer. You simply need to program it to run twice a day with at least one minute of "off" time between cycles to allow the valve to switch.

What happens if the water flow is less than the minimum required?
If the flow or pressure drops too low, the internal mechanism may not fully rotate to the next outlet, causing water to continue running out of the same side or get stuck between both.

How does this valve help me manage my expanding spring garden before summer?
As you add new raised beds in mid-May, this valve instantly splits your single spigot timer into two automated zones, ensuring delicate new spring plantings and mature shrubs both get adequate hydration before the summer heat.