How To Unblock A Drain Outside =link= File

Here’s a step-by-step guide to unblock an outside drain (e.g., kitchen waste, rainwater gully, or surface water drain).

Once you have broken up the main mass of the blockage, you need to clear the pipes.

Lift the drain cover and inspect the area. Often, outside drains are simply blocked by a layer of leaves, twigs, or silt sitting at the top.