Tank Cleaning

We employ high-volume, low-pressure water to clean tanks from the outside if the levels of vapors inside require it. Using high-volume trucks with lances attached, our reach capability into the tank is approximately 50 feet. This allows us to quickly and safely flush the tank, remove flammable liquids and move the sludge to a pick-up point. Upon entry, the stream is split between two lances and the tank is quickly and thoroughly cleaned.

To reduce the volume of water required, we use a unique micron-filtration system that allows us to filter the water generated and reuse it in the cleaning process. Doing this drastically reduces the amount of water used and contributes to the overall cost-effectiveness of the project. National Industrial Maintenance has a fleet of industrial vacuum tankers, pumps and equipment to insure the rapid, safe and complete removal of both solids and liquids from tanks.

Our experience also extends to other areas that must be frequently addressed in the tank cleaning process, including:

• Setting legs on floating roofs prior to lowering level of product.


• Raising floating roofs from low legs to high legs by jacking up IFR to
         position and setting legs on high setting.


• Blinding off lines on tank by placing pancakes or skillets into lines.


• Pigging lines to remove residual product from lines when changing products.


• Segregating waste material by separating water from fuel and sludge
         and separating sludge from liquids for disposal enhancement.


• Pontoon inspection to determine integrity and any damage that requires attention.


• Inspection of wipe vapor seal on the IFR to determine integrity.