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dnt ca grease ball sewer_00001203.jpg
dnt ca grease ball sewer_00001203.jpg

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    Grease balls cause sewage clog

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Grease balls cause sewage clog

Grease and wet wipes wreaking havoc on San Francisco's sewer system, as KTVU's Dave Stevenson reports.

Grease balls cause sewage clog

Grease and wet wipes wreaking havoc on San Francisco's sewer system, as KTVU's Dave Stevenson reports.