When installing the Phil-Tite EVR Phase I system (VR 101-E), what should be used on the ball float nipple?

The correct choice, which is the use of a gasoline-resistant pipe compound on the ball float nipple when installing the Phil-Tite EVR Phase I system (VR 101-E), is essential for ensuring the system's integrity and performance. A gasoline-resistant pipe compound is specifically designed to withstand the harsh conditions and chemical exposure related to fuel, providing a secure and leak-proof seal. This type of compound prevents the deterioration that could arise from contact with gasoline, which is crucial for longevity and safety in vapor recovery systems.

Using a compound resistant to gasoline helps maintain functionality and safety, allowing the system to operate efficiently without the risk of leaks, which can be hazardous. Other options, such as silicone and Teflon tape, may not provide the necessary chemical resistance and could break down over time when exposed to gasoline, leading to potential failures. Similarly, while two-part epoxy is robust, it may not be suitable for all applications in vapor recovery due to its rigid nature, which could crack or break if flexibility is required. Thus, the best practice in this scenario is to apply a gasoline-resistant pipe compound to ensure a proper seal and protect against fuel exposure.