The material to be removed is only part of the job. Pipe or surface condition, access, isolation, washwater recovery and the finish required can all change the method.
Deposit and process: what the material is, how it formed and any useful product or sample information.
Pipe or surface: dimensions, construction, condition and any coatings, linings or previous repairs.
Work area: access, isolation and whether the equipment can be taken out of service.
Recovery and finish: how solids and washwater will be collected, and how the finished work will be checked.
Reference sources for this library
These references cover the applications, safety points and environmental limits used across the library. Manufacturer material describes the named equipment or application, not whether it is suitable for every job. Regulatory and safety guidance is used only within its stated scope.
Cleaning water can carry contamination into drains or the wider environment. The job needs a collection method and a drainage or waste route that is permitted for what the water contains.
Oil in cleaning runoff changes how the water should be contained and managed. Oil source, likely contamination, drainage layout and the available collection method are the main points to establish.
Water from coating removal can carry paint, corrosion products and other residues. The coating, containment method and permitted drainage or waste route need to be considered together.
Silt mobilised during cleaning still has to be contained and recovered. Its source and possible contamination affect how the water and settled solids should be managed.
