Miller Mechanical Services, Inc. is currently in the process on fabricating three blackflush accumulator tanks for the pulp and paper industry.  These carbon steel tanks are ASME code vessels that will include the process of hydrotesting and stamping per code. The tanks are used in a diffuser system to store filtrate that will backflush the system, forcing liquor from the inside to the outside of the screens, thus cleaning them from any stock build-up.