Pump Controller vs. Pressure Switch: Key Differences and When to Use Them

Choosing between a pump controller and a pressure switch can make all the difference in water system performance, especially for your customers. As a pump reseller, understanding when to recommend each solution helps you add value, build trust, and ensure repeat business.

Here’s a clear breakdown of both, so you can confidently guide buyers toward the right fit.

What Is a Pressure Switch?

A pressure switch is a mechanical device that turns a pump on or off based on system pressure. It starts the pump when pressure drops and stops it when pressure is restored. Commonly used in tank-fed or bore systems, it’s a simple and affordable solution that works best with a pressure tank to reduce cycling. While reliable and low-cost, pressure switches don’t include features like dry-run protection, making them better suited for basic setups rather than more complex or high-risk applications.

Best for:

• Simple systems (e.g. tank-fed household setups)

• Single-storey homes or sheds

• Constant water demand with minimal variation

• Customers looking for low-cost, no-frills control

Pros:

• Affordable

• Easy to install

• Works well with pressure tanks

• Long service life with minimal maintenance

Limitations:

• No dry-run protection

• Doesn’t manage flow or offer digital feedback

• Less suited for variable or multi-outlet setups

What Is a Pump Controller?

A pump controller is an electronic device that automatically starts and stops the pump based on water demand, maintaining constant pressure without needing a pressure tank. It’s ideal for homes, irrigation, or any system with multiple outlets. Most controllers include dry-run protection, automatic restart, and system status indicators. While they cost more than pressure switches, they offer greater convenience and built-in safety — though surge protection is recommended in areas with unstable power.

Best for:

• Domestic homes with variable water use

• Irrigation systems

• Commercial washdown or pressure boosting

• Applications with a risk of running dry

Pros:

• Maintains consistent pressure (even across multiple outlets)

• Built-in safety features (like dry-run protection)

• Easier troubleshooting with LED/error indicators

• Compact and all-in-one

Limitations:

• Higher upfront cost than a pressure switch

• Electronics can be affected by power surges

• May not be ideal for all pump types (always check compatibility)

Quick Comparison: Pressure Switch vs. Pump Controller

When to Recommend Each

Choosing between a pressure switch and a pump controller depends on the system’s complexity and the customer’s needs. For simple setups like a single tap or trough, a pressure switch is an affordable, reliable option, especially with a pressure tank.

But for systems with multiple outlets, varying flow, or a risk of dry running, a pump controller is the better choice. It offers consistent pressure, built-in protection, and greater convenience with less manual intervention.

Go with a pressure switch if your customer:

• Is setting up a basic tank-fed or bore-fed system

• Doesn’t require advanced safety features

• Wants a budget-friendly option

• Is comfortable installing with a pressure tank

Recommend a pump controller if your customer:

• Needs constant pressure without a tank

• Wants plug-and-play functionality

• Is concerned about pump longevity or dry running

• Has multiple outlets or uses water intermittently

Final Thoughts

There’s no one-size-fits-all answer, but understanding how and where each option performs best helps you make informed recommendations. For wholesale orders, we stock a full range of both pressure switches and pump controllers from trusted brands, including options with built-in protection and industry-standard fittings.

Want help choosing the right control solution for your next customer order? Get in touch with our technical team or shop our wholesale range online.