What the service should include
The line is assessed and cleaned progressively with equipment suited to the material, rather than treated with uncontrolled aggressive chemicals.
- Confirm the affected system and access
- Assess hazards and previous treatments
- Explain the proposed method
- Check the result before leaving
Questions, evidence and outcome
A final camera pass should show the restored bore and distinguish remaining roughness or damage from removable deposit.
- What deposit and pipe material were identified?
- How will removed scale be recovered?
- Will the remaining wall condition be recorded?
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.