<div class="chunk-title">Sec. 26-171. - Under-the-sink grease interceptors.</div>
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               If an outside grease interceptor is not practical, an under-the-sink grease interceptor
               may be installed subject to the approval of the general services director. In addition
               to the general requirements for grease interceptors as provided for in this article,
               under-the-sink interceptors shall be subject to the following additional requirements:
               
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                  (1)
                  
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                  <span class="ital">Under-the-sink interceptor requirements.</span>
                  
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                  a.
                  
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                  Under-the-sink interceptors shall be located within 25 feet of the wastewater source,
                  as is reasonably possible.
                  
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                  b.
                  
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                  The lid shall be secured to the body with a single bolt. No wing nuts or screws shall
                  be permitted.
                  
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                  c.
                  
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                  Baffle systems and all other internal pieces shall be removable to facilitate cleaning
                  and replacement, but must be in place at all other times.
                  
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                  d.
                  
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                  The lid shall cover the deep seal interceptor. The deep seal interceptor shall be
                  constructed so as to eliminate the possibility of sewer gas entering the kitchen area.
                  
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                  e.
                  
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                  The interceptors shall be constructed with bottom supports so that the body of the
                  interceptor does not corrode by coming into contact with the floor.
                  
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                  f.
                  
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                  The interceptor shall be coated with a powder-coated electrostatically applied cathodic
                  epoxy coating so as to be resistant to corrosion.
                  
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                  g.
                  
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                  The interceptor shall be equipped with a flow control fitting.
                  
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                  (2)
                  
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                  <span class="ital">Installation requirements.</span>
                  
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                  a.
                  
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                  The interceptor may be set on the floor, partially recessed in the floor with top
                  flush with the floor, or fully recessed below the floor to suit piping and structural
                  conditions, as acceptable to the general services director.
                  
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                  b.
                  
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                  There shall be sufficient clearance for the removal of the interceptor cover for cleaning.
                  
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                  c.
                  
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                  Unless specifically approved by the general services director, runs of pipe exceeding
                  25 feet between fixture and interceptor shall not be permitted.
                  
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                  d.
                  
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                  The interceptor shall not be installed in a waste line from a garbage grinder. Any
                  garbage grinder waste shall bypass the interceptor.
                  
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                  e.
                  
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                  A suitable flow control fitting shall be installed ahead of the interceptor in the
                  waste line beyond the fixture and as close as possible to the underside of the lowest
                  fixture. When wastes of two or more sinks or fixtures are combined to be used by one
                  interceptor, a single flow control fitting shall be used.
                  
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                  f.
                  
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                  Air intake for flow control either shall terminate under-the-sink drain board as high
                  as possible to prevent overflow, or shall terminate in a return bend at the same height
                  and on the outside of the building.
                  
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                  g.
                  
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                  To retain water and prevent siphoning, all interceptors must be vented and sized in
                  accordance with the applicable plumbing codes.
                  
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                  h.
                  
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                  With approval of the general services director, one interceptor may be used to serve
                  multiple fixtures if the fixtures are located close together and the interceptor is
                  sized to meet the combined flow of all the fixtures.
                  
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            <p class="historynote0">
               (Ord. of 5-5-2009)
               
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