1. Attach a typical water hose to the Exhaust Fan Interceptor outlet. The average hose length required is approximately 10 feet and is equipped with a standard 3/4″ female water hose fitting.
2. Insert the expelling portion of the hose between the fan blades or through an access panel. Ensure that the elevation of the expelling end of hose is lower in the duct than the Exhaust Fan Interceptor (the greater the elevation difference, the better the siphon).
3. Charge the line with high pressure water through the 1/4″ fitting on the Exhaust Fan Interceptor (charge point). Ensure water is flowing thru the entire hose.
4. Begin the cleaning process. All water should now be siphoning efficiently into the interior of the exhaust system for collection at the hood and the roof top.