Do I need a master valve or flow sensor?
Consider using one if you have a large irrigation system, high-value landscape, variable terrain and/or elevations, or are concerned about potential leaks.
What type of flow sensor should I use?
Choose a sensor suitable for your pipe size and water pressure, with accurate readings and a reliable alarm function. Consult with irrigation professionals as needed.
How should I set the flow sensor’s flow rate threshold?
Set it based on your typical irrigation needs, allowing for slight fluctuations while triggering an alarm for significant flow increases or decreases. Consult the manufacturer’s instructions for specific calibration procedures, which might involve adjusting settings based on known water flow rates.
What happens when the flow sensor detects a high flow?
The controller will typically activate an alarm and may automatically shut off the irrigation system master valve.
Can I use a flow sensor without a master valve?
While technically possible, a master valve provides an additional layer of control by isolating the main water supply, making it generally recommended to use both together.
Where should the master valve be located in my irrigation system?
Typically, it should be installed at the main water supply line, right after the backflow preventer, acting as the primary on/off point for the entire irrigation system, allowing you to control the water flow to all zones with a single valve.
Can I use any type of valve as a master valve?
No, it’s recommended to use a dedicated electric solenoid valve designed for high pressure applications, as anti-siphon valves are not suitable for master valve usage due to potential damage from constant pressure.
What size master valve should I choose?
The size of the master valve should match the size of your main water supply line to ensure adequate water flow.
How do I access the master valve for maintenance?
This may depend on the location: Most master valves are installed in a valve box, allowing for easy access to check for leaks or perform necessary adjustments.
Where should I install a flow sensor?
Ideally, install it on the main line of the irrigation system, just downstream of the master valve and upstream of any zone valves.
What factors should I consider when choosing a flow sensor?
Pipe size, flow rate range, accuracy level, compatibility with your irrigation controller, and desired features like alarms or data logging.
What should I do if the device I want to purchase is not listed on the qualified product list?
Contact SoCalWaterSmart at (888) 376-3314 or socalwatersmart@egia.org to determine if this device will be eligible for the rebate program.
If I install a two-in-one master valve/flow sensor, can I receive both the master valve and flow sensor rebates?
No, instead apply for the combination master valve/flow sensor rebate.
