Plumbing and maintenance

Blocked toilets: what to try and when to stop

The practical points

  1. 1

    A WC plunger or a WC auger clears most local blockages within the trap and the first section of branch.

  2. 2

    If other fittings gurgle or back up at the same time, the blockage is in the shared drain and needs different equipment.

Before you commit

A WC plunger or a WC auger clears most local blockages within the trap and the first section of branch.
Recent first-fix plumbing installation completed in Gloucester, relevant reference for Gloucestershire clients, referenced in our guide to blocked toilets
walk-in shower and vanity unit #2, Cheltenham, Cotswold Maintenance Group portfolio, referenced in our guide to blocked toilets
loft conversion bathroom, Tewkesbury project, similar to what we deliver in Gloucestershire, referenced in our guide to blocked toilets

Your questions answered

Should I keep flushing?

No, each flush adds volume with nowhere to go.

What causes repeat blockages?

Wipes, excess paper, or a branch with insufficient fall that never fully clears.

Second opinion on blocked toilets

If you already have a quote or a design and something does not sit right, it is worth another set of eyes before work starts.