a) Determine the injection points and circulation lines including proper vents and drains. b) Isolate the system to be cleaned by either closing valves, dropping valves, blind flanges or temporary by-pass lines.
c) Locate the area for chemical mixing tank and pump. d) Locate the draining points, water supply, power supply, nitrogen supply and steam supply. e) Hook-up the chemical cleaning equipment with the system to be cleaned. f) Test-run the equipment and check leak of the temporary piping.