Storage Tank will dirty / contain accumulated sludge. Cleaner tanks give high quality fuel to motorist, longer lifespan to the Tank, dispenser meter & filter and prevent cases of Slow dispensing flow rate from clogged dispenser filtersOur Equipment are:Powered with gear pump c/w explosion proof single phase electrical motor, Dual in series filter cartridges on robust housing & trolley, 2 inches diameter of suction & discharge hoses, Set of precision pressure/vacuum gauges to monitor the filter condition during pumping & filtration, Filter cartridges, 18” L x 7” dia, max 50 gpm flowrate, remove 99.9 % of free and emulsified water as well as particulates down to 5 micron in size.