Tank Bottom Sludge Removal, Explained Without the Sales Fog

Field notes

The described workflow uses heated water and circulation to suspend hydrocarbon sludge before pumping or vacuuming it out, with LEL monitoring during the work. The page specifies 1:10 dilution for heavy residue and 1:50 for light residue, and lists concentrate in pails, drums, totes, and bulk. It also draws a hard boundary around the method: it addresses hydrocarbon films and residue, not physically bonded scale, rust, hardened deposits, or coatings.