Agricultural product storage compartment assembly having a weight monitoring system

An agricultural product storage compartment assembly includes a first storage compartment configured to couple to a frame. The first storage compartment is configured to provide a first agricultural product to a first metering assembly. The agricultural product storage compartment assembly also includes a supplemental storage compartment configured to couple to the frame independently of the first storage compartment. In addition, the agricultural product storage compartment assembly includes a first flexible link configured to facilitate flow of the first agricultural product from the supplemental storage compartment to the first storage compartment. Furthermore, the agricultural product storage compartment assembly includes a first valve configured to selectively block flow of a second agricultural product from the supplemental storage compartment to the first storage compartment while the first valve is closed. The agricultural product storage compartment assembly also includes a weight monitoring system.