Step five consists of removing
all the sludge that has accumulated from the cleaning of the exhaust stack, fans, floor
grating, and deposits that were removed from the concrete floor. This is done by the use
of an industrial wet-vac system.
All sludge is then pumped into the
sludge seperator and the water is extracted and filterd. The sludge is then bagged and
set aside awaiting proper disposal in accordance to law.