What the service should include
The technician should start from a suitable cleanout, document the direction and use a transmitter or distance counter when locating buried observations.
- Confirm the affected system and access
- Assess hazards and previous treatments
- Explain the proposed method
- Check the result before leaving
Questions, evidence and outcome
The result should show what was visible, where it was found and whether cleaning or another access point limited the inspection.
- Is line locating included?
- Will distance and direction be recorded?
- Will the recording be supplied?
Step-by-step approach
- 1
Describe every symptom
- 2
Disclose products and previous work
- 3
Agree scope and price basis
- 4
Ask how the result will be verified
- 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.