FOG (Fats, OIls and Grease) Prevention

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  • Beware "flushable wipes." Even if the product says "flushable" they do not degrade quickly--instead they clump up to clog private and public sewer lines.

  • What NOT to Flush - sewer care informational flyer

What is F.O.G. and why should you care?

Nearly 50% of all sewage overflows nationwide are caused by homeowners and business owners who improperly dispose of F.O.G. - everyday fats, oils, and grease.

Common F.O.G. sources include:
  • Oil from cooked meats and fish
  • Gravies, sauces, and soups 
  • Cooking oil, butter, shortening, lard, and margarine
  • Milk, cream, sour cream, and mayonnaise
  • Food scraps

F.O.G. products poured into the drain, through the dishwasher or the garbage disposal will harden and cause sewer clogs-like this one!

Hot water or a dishwasher might melt the grease and push it further down the drain.  But it will only solidify again once it cools.  Chemicals that claim to dissolve grease will only temporarily push the grease down the line, affecting neighboring lines.

No one wants the heavy cost and mess of sewer backups!
  Clogged sewer pipes will eventually cause sewer backups in your home and neighborhood.  Clogged sewer pipes can also release sewage into waterways, harming the environment. 

Here's how to protect your sewer from F.O.G. buildup :

1. Scrape and wipe first

Take a paper towel to all pots, pans and dishes with heavy grease buildup before washing—grease enters the sewer through the dishwasher too! The towel can also be composted with your food scraps. 

2. Avoid in-sink garbage disposals

All food that goes into your garbage disposal (including greasy scraps) goes straight to your pipes.  Use a sink strainer to trap food waste before it enters the drain.  Be EXTREMELY CAREFUL what you allow down your garbage disposal - if oily or greasy food solids, compost instead.

3. For proper disposal:

Cool excess grease, pour into a container like a coffee can or food jar, cover, and place in the trash.  Some companies will collect your "yellow grease," or used cooking oil (not bacon grease), and recycle it into bio fuel.  A local collection tank is located at the North Kirkland Community Center, 12421 103rd Ave NE.