Introducing the Orbit WaterMaster 4.5 in. L Pump Start Relay—the compact, reliable control module designed to initiate pump operation smoothly in residential systems. Housed in sturdy gray plastic, this single-pack relay arrives boxed and ready to integrate into your existing water or irrigation setup, delivering dependable performance when you need it most.
Why this WaterMaster pump start relay stands out
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Compact, box-ready design: With a 4.5-inch length and a footprint that fits standard control boxes, it slips into tight spaces without crowding your wiring layout.
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Durable plastic enclosure: Built to withstand routine on/off cycling and the demands of typical domestic pump installations.
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Single-pack convenience: Sold as 1 unit in a boxed package for straightforward replacement or upgrade of a single relay in your system.
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Clear brand reliability: Orbit’s WaterMaster line brings trusted performance to pump start applications, helping you avoid hesitation or stalling at startup.
Specifications at a glance
- Brand: Orbit
- Sub Brand: WaterMaster
- Product Type: Pump Start Relay
- Color: Gray
- Material: Plastic
- Length: 4.5 in
- Height: 8 in
- Width: 6 in
- Packaging Type: Boxed
- Number in Package: 1
Ideal use cases
- Irrigation systems that require a reliable start signal to kick the pump into action as soon as a demand arises
- Pool or spa equipment where consistent startup performance prevents delays and equipment wear
- Well pumps or backup sump configurations that benefit from a straightforward relay to manage power cycles
- Simple system upgrades where replacing an aging relay improves overall pump responsiveness
What problems does it solve?
- Eliminates startup hesitation by providing a consistent relay action, helping pumps reach full pressure quickly
- Reduces wear from unreliable starts, potentially extending pump life
- Streamlines maintenance with a boxed, ready-to-install unit that fits common control layouts
Practical tips for best results
- Power down the circuit and verify compatibility with your pump’s control wiring before installation.
- Mount the relay in a dry, protected area to minimize exposure to moisture and dust.
- Follow the system wiring diagram provided by your equipment manufacturer to connect the relay correctly.
- Test the pump briefly after installation to confirm reliable startup and normal operation.
The Orbit WaterMaster 4.5 in. L Pump Start Relay is a smart, purpose-built solution for dependable pump startup in residential environments. Its sturdy plastic construction, compact form factor, and single-pack packaging make it an accessible upgrade or replacement component—delivering consistent performance when your water, pool, or irrigation system needs it most.
