01

What the service should include

Diagnosis distinguishes a pan-trap obstruction from a soil-stack or downstream drain problem, avoiding unnecessary force on the toilet.

  • Confirm the affected system and access
  • Assess hazards and previous treatments
  • Explain the proposed method
  • Check the result before leaving
02

Questions, evidence and outcome

The toilet should flush and refill normally without movement, leakage, gurgling or backup at another fixture.

  • Is pan removal included if required?
  • Could the issue be in the shared line?
  • Will seals be replaced and leak-tested?
03

Step-by-step approach

  1. 1

    Describe every symptom

  2. 2

    Disclose products and previous work

  3. 3

    Agree scope and price basis

  4. 4

    Ask how the result will be verified

  5. 5

    Keep footage, reports and repair recommendations

Important safety point

Tell the engineer about every chemical or home treatment already used. Hidden corrosive liquid can put people at risk when a pipe or trap is opened.