How To Unblock Outside - Drains

Here’s a step-by-step guide to unblocking an outside drain (e.g., yard gully, kitchen waste pipe, or rainwater drain). ⚠️ Safety first:

Wear rubber gloves and safety glasses. Avoid mixing chemical drain cleaners – they can create toxic fumes. If you suspect a sewage blockage, call a professional.

1. Identify the blockage location

Check if multiple drains (e.g., sink, toilet, outside gully) are slow – that suggests a main sewer blockage. If only one outside drain is overflowing/slow, the blockage is local. how to unblock outside drains

2. Clear visible debris

Remove leaves, mud, or silt from the drain grate. Lift the grate (use a screwdriver if needed) and scoop out solid gunk by hand or with a trowel.

3. Use a plunger

For a gully trap (vertical pipe just below the grate), use a flat-bottomed plunger . Seal the overflow hole (if present) with a wet rag. Plunge vigorously 10–15 times, then check if water drains.

4. Try hot water and washing soda

Boil a large kettle of water. Pour 1 cup of washing soda (sodium carbonate) – not baking soda – into the drain. Follow with the boiling water. Wait 10–15 minutes, then flush with a hose. (Don’t use this method if you’ve already poured acid-based cleaner down.) Here’s a step-by-step guide to unblocking an outside

5. Use a drain rod or pressure washer

Drain rods : Insert rods into the pipe and twist to break up or retrieve the blockage (e.g., wet wipes, roots). Pressure washer with drain jetter hose : This blasts water backwards to clear sludge and roots. (Works well but can be messy.)