While DIY methods work for most localized blockages, some situations require expert help. Call a drainage specialist if:
What did you find inside or around the drain grid? how do you unblock outside drains
| Cause | Description | |-------|-------------| | | Accumulation in gully pots or grates. | | Fat, oil & grease | Solidifies in pipes (often from kitchen sinks draining outside). | | Tree roots | Invade cracks or joints in clay or old plastic pipes. | | Sediment & silt | Builds up over time, especially in low-lying drains. | | Foreign objects | Toys, sanitary products, or building materials. | While DIY methods work for most localized blockages,
Debris mixed with shards of clay, plastic, or old concrete indicates a broken underground pipe. how do you unblock outside drains