506.3.7.1 Grease duct reservoirs .

Grease duct reservoirs shall:

   1.   Be constructed as required for the grease duct they serve.

   2.   Be located on the bottom of the horizontal duct or the bottommost section of the duct riser.

   3.   Extend across the full width of the duct and have a length of not less than 12 inches (304.8 mm).

   4.   Have a depth of not less than 1 inch (25.4 mm).

   5.   Have a bottom that slopes to a capped drain connection.

   6.   Be provided with a cleanout opening constructed in accordance with Section 506.3.8 and installed to provide direct access to the reservoir. The cleanout opening shall be located on a side or on top of the duct so as to permit cleaning of the reservoir.

   7.   Be installed in accordance with the manufacturer's instructions where manufactured devices are utilized.