Figure 3-9. Trough urinals.
d. Urinoil. The urinoil (see Figure 3-10) represents a further modification for the
more permanent installation. Simply described, it is a 55-gallon drum placed over a
recessed soakage pit to receive and trap urine. The drum contains a quantity of waste
oil, hence the name, urinoil. Urine voided through the screen and onto the surface of
MD0161
3-15
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