If your outside drain is overflowing or emitting a foul odor, you likely have a "fatberg" situation. Fat, oil, and grease (FOG) may go down the sink as liquids, but they quickly solidify into a waxy, stubborn mass once they hit the cold environment of an external gully. Common Signs of a Fat Blockage
How to Clear an Outside Drain Blocked with Fat: A Simple Guide outside drain blocked with fat
Finding out your outside drain is blocked with fat (often called a "fatberg") is a messy surprise. It usually starts with a slow sink or a nasty smell and ends with water overflowing into your yard. If your outside drain is overflowing or emitting