SYMPTOM	SITUATION	SOLUTION
The pile has a rotten-egg smell.	There is too much water.	Turn the pile and add more browns if it's soggy.
The pile has an ammonia smell.	There is too much nitrogen or not enough air.	Add browns and turn the pile.
The pile isn't decomposing quickly enough or isn't producing enough heat.	The pile is too small. The material is too dry. The pile needs nitrogen. The pile needs oxygen.	Mix new ingredients into the pile. Add water and turn the pile. Add greens. Turn the pile more frequently.
The pile is too hot. The temperature is 170°F or above.	The material is too dry.	Add browns and water, then turn the pile.
The pile is losing heat before the compost is finished.	The material is going anaerobic - losing air.	Add greens and turn the pile.
Flies and/or gnats are around the pile.	The greens are exposed.	Cover the greens with browns.