Cascade Drum Assembly
Your 55 gallon drums serve as the reservoirs. A "Cascade" drum stand is provided which allows two drums each of the A and B materials to be stacked on their sides. The top drum on each side serves as a replenishing supply and feeds the bottom drum through a shut off valve and a clear hose. This permits the operator to visually determine when the replenishment drum requires changing. A desiccant cartridge is provided on both replenishment drums for drying incoming air.
The advantage to using the Cascade system is that it allows the user to maintain a full supply drum at all times. The system effectively precludes the intrusion of ambient air into the material, an especially important feature when using moisture sensitive resins. It also eliminates the process of having to switch drum pumps at each replenishment, thus avoiding a required bleed procedure.