TAMPA, Fla. - The city of Tampa says pouring grease down drains and flushing wipes – even the ‘flushable’ ones – creates so-called fatburgs in the sewer systems and causes sewage to spill out into roadways. 

Last Sunday alone, the city reported three wastewater spills where a total of nearly 10,000 gallons of wastewater overflowed from sewers -- all caused by grease blockages.

City officials say residents have to be diligent about what they're putting into the wastewater system.

Sunday's overflows happened in East Tampa and near downtown.