Biomethane gas will fuel about 120 trucks for Recology.

Sewage is now being turned into biomethane gas, a renewable resource used instead of diesel for Recology trucks around King County.

Now, when you flush your toilet in King County you're helping fuel garbage trucks.

"Right now we are standing around the settling tanks. When you're at home, when you use your sink, shower or flush your toilet, your water is coming here," said Katelyn Hunt of King County Waste Water Division. "We need to immediately separate the water from the solid material, all that organic material."

By Alison Morrow, King5 News.