Johnson Pump Float Switch, Elec-Mag, 15A Max, 12V Review

Let’s Talk About Johnson Pump Float Switch, Elec-Mag, 15A Max, 12V

The Johnson Pump Float Switch, Elec-Mag, 15A Max, 12V is a crucial component for any boater or anyone dealing with potential water accumulation issues. Manufactured by Johnson Pump, this compact switch combines solid-state electronics with a reliable float mechanism to automatically activate your bilge pump when water reaches a certain level. It boasts false start prevention, mercury-free construction, and durable, encapsulated electronics.

My journey to the Johnson Pump Float Switch was born out of necessity. I had a recurring problem with water collecting in the bilge of my small fishing boat, and manually switching the bilge pump was becoming a real hassle. I needed a reliable, automatic solution to ensure the boat stayed dry and prevent potential damage.

Upon unboxing, my first impression was positive. The switch felt solid and well-built, made of high-impact plastic that inspired confidence. The compact design was also a plus, as space is always a premium on a smaller vessel.

I considered a few other options before settling on the Johnson Pump. One was a similar float switch from Rule, while another was a more basic, mechanical float switch. Ultimately, I chose the Johnson Pump for its combination of electronic reliability and the magnetic actuation.

I was definitely excited to install the Johnson Pump Float Switch. The thought of not having to constantly monitor the bilge and manually activate the pump was a huge relief.

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Real-World Testing: Putting Johnson Pump Float Switch, Elec-Mag, 15A Max, 12V to the Test

First Use Experience

I tested the Johnson Pump Float Switch in my fishing boat, primarily on calm lake waters. Installation was straightforward, especially since I already had a compatible Johnson Pump bilge pump. I carefully followed the included documentation and secured the switch in a location where it could freely float.

The switch performed flawlessly in various conditions. Even with the boat rocking gently, the false start prevention feature worked perfectly, preventing unnecessary pump activations. The true test came during a sudden downpour when the bilge quickly began to fill.

I was impressed. The switch activated the pump precisely at the specified 2″ water level, and deactivated it at the 3/4″ mark, as advertised.

Extended Use & Reliability

After several months of regular use, the Johnson Pump Float Switch has proven to be exceptionally reliable. It has consistently activated and deactivated the pump without any issues, regardless of water conditions or debris in the bilge. The high-impact plastic has held up well, showing no signs of cracking or degradation.

Maintenance has been minimal. Occasionally, I visually inspect the switch to ensure it’s free from obstructions, but that’s about it. The encapsulated electronics have proven to be completely waterproof, as advertised, even after being submerged multiple times.

In comparison to previous experiences with less reliable float switches, the Johnson Pump significantly outperforms them. I experienced many failures with other switches, leaving me stranded with a flooded bilge. This switch provides real peace of mind.

Breaking Down the Features of Johnson Pump Float Switch, Elec-Mag, 15A Max, 12V

Specifications

The Johnson Pump Float Switch, Elec-Mag, 15A Max, 12V is designed to operate on a 12V DC electrical system with a maximum current draw of 15A. It activates the pump when the water level reaches 2 inches and deactivates it when the water level drops to 3/4 inches. The switch utilizes a compact mechanical design combined with reliable solid-state electronics and a sealed float switch.

The absence of mercury is a significant safety and environmental benefit. The high-impact plastic construction and encapsulated electronics contribute to the switch’s overall durability and resistance to water damage.

These specifications are crucial for ensuring compatibility with your bilge pump and electrical system. The 15A maximum current rating is particularly important; exceeding this limit could damage the switch and potentially the pump.

Performance & Functionality

The Johnson Pump Float Switch excels at its primary job: automatically activating and deactivating a bilge pump based on water level. The false start prevention mechanism is highly effective, minimizing unnecessary pump cycles. Its precise activation and deactivation points ensure optimal water removal without excessive running.

The switch’s strengths lie in its reliability, ease of installation, and robust construction. The main area for possible improvement might be offering versions with different activation/deactivation depths to cater to specific needs. Overall, it more than meets expectations.

Design & Ergonomics

The switch’s build quality is excellent. The materials feel durable and resistant to harsh marine environments. Its compact size makes it easy to install in tight spaces.

The design is user-friendly and intuitive. There’s virtually no learning curve involved. Anyone familiar with basic electrical wiring can easily install this switch.

Durability & Maintenance

Given the high-quality materials and encapsulated electronics, the Johnson Pump Float Switch is built to last. The switch’s resistance to water and corrosion suggests a long service life. Minimal maintenance is required; a simple visual inspection is usually sufficient.

Accessories and Customization Options

The Johnson Pump Float Switch comes with the necessary documentation and an adapter for use with other SPX FLOW Johnson Pump bilge pumps besides the cartridge models. While there aren’t extensive customization options for the switch itself, its compatibility with a wide range of Johnson Pump bilge pumps allows for flexibility in system design.

The adapter is a valuable addition, expanding the switch’s compatibility.

Pros and Cons of Johnson Pump Float Switch, Elec-Mag, 15A Max, 12V