What size fire hose is utilized as the discharge hose for a Portable Electrical Submersible Pump?

The correct answer is the 2 1/2 inch x 50 feet fire hose. This size is standard for use with Portable Electrical Submersible Pumps, as it provides the necessary flow rate and pressure capacity required to effectively discharge water for firefighting or dewatering operations. A 2 1/2 inch diameter allows for ample water to be moved efficiently, while the length of 50 feet offers a practical range for most typical applications without being cumbersome or overly difficult to manage.

Utilizing a hose that is too small in diameter, such as the 1 1/2 inch hose, would restrict water flow significantly, reducing the pump's effectiveness. Similarly, while a 3 inch hose might allow for even greater flow, it could be less practical in terms of maneuverability and could require more powerful pumps than typically necessary for most operations. A 2 inch hose also does not provide the ideal flow characteristics that a 2 1/2 inch hose does, making it less suitable for these specific applications.