TL;DR: If your waste disposal is blocked in Christchurch, stop using it, avoid adding more waste, and check for simple blockages in the sink or trap. If the blockage does not clear, it is best to have it checked.

What does a blocked waste disposal mean

If water is not draining or the unit is not processing waste properly, there is likely a blockage somewhere in the system.

This could be inside the disposal unit itself or further along the pipework.

First step – stop using the unit

Continuing to run a blocked disposal can make the problem worse.

It may also place strain on the unit and increase the risk of damage.

Check for visible signs of blockage

If it is safe to do so, look for obvious signs:

• Water sitting in the sink
• Food waste is not breaking down
• Slow drainage

These indicate that water is not flowing away as it should.

Try simple flushing

Running water through the system without adding more waste may help move minor buildup.

This can sometimes clear light blockages.

Check the trap under the sink.

The curved pipe beneath the sink can collect debris.

If it becomes blocked, it can stop water from draining.

This is a common location for blockages.

Avoid unsafe actions

Do not put your hand into the disposal unit.

Avoid using excessive force or unsuitable tools, as this can damage the unit or create a safety risk.

Why blockages happen

Blockages are often caused by:

• Food waste is building up over time
• Grease solidifying in the pipes
• Items that should not go through the disposal

These can combine to restrict flow.