When filling an oil reservoir on a vertical turbine well pump, what type of oil is required?

When filling an oil reservoir on a vertical turbine well pump, food grade mineral oil is required due to its properties that make it safe for use in applications where there may be a risk of contamination with food or potable water. This type of oil is specifically formulated to meet the standards for safety and compatibility with drinking water systems, ensuring that it does not leach harmful substances over time.

Using food grade mineral oil helps maintain the integrity of the water supply and meets regulatory requirements that dictate what materials can be used in systems that directly interact with potable water. It is also designed to provide adequate lubrication under the operating conditions of a vertical turbine pump, which is crucial for efficient operation and longevity of the equipment.

In contrast, other types of oils may not meet safety standards, may contain additives that could contaminate water, or may not provide the necessary characteristics required for a well pump application. The specific selection of food grade mineral oil ensures compliance with health regulations and promotes safe drinking water standards.