High-Pressure Water Jetting Workflow

Educational guides on how workplace documents fit together — which document is typically completed before another, what is used alongside it and what follows. Connected to workplace forms, checklists and registers. Informational only — not legal advice; employers remain responsible for required documents and compliance.

What a water jetting workflow is

High-pressure water jetting uses water at very high pressure to clean or cut, and the jet can cause serious injury on contact. The workflow is the chain of documents around it — the assessment, the exclusion zone, the protective equipment, and any permit that controls the work.

This page is an educational overview of how those documents connect. It is not an official procedure, is not jurisdiction-specific, and using it does not authorise any jetting or guarantee compliance. Jetting requires trained operators — the employer must determine what applies.

Why these documents connect

• The risk assessment identifies the jet-injury and pressure hazards.
• The exclusion zone keeps people out of the line and reach of the jet.
• Protective equipment guards the operator against the jet and debris.
• A dump or shut-off arrangement lets the pressure be cut quickly.
• A permit may control the work in shared or sensitive areas.

The typical sequence

In a typical example, a risk assessment is completed first and is normally required before work; the equipment, exclusion zone and protection are planned and trained operators are arranged. Any permit is issued and used with the assessment.

Jetting is carried out within the exclusion zone with protection and a working shut-off, and others are kept clear of the jet line. On completion, the equipment is depressurised and made safe, and a record is completed afterwards.

Who owns each step

• The employer owns the system and ensures operators are trained.
• A competent person plans the exclusion and protection.
• The operator uses the equipment and protection as specified.
• A supervisor keeps others clear of the jet line.
• A second person may control the shut-off where required.

Common mistakes

• Jetting without an exclusion zone, putting others in the jet line.
• No quick shut-off or dump if something goes wrong.
• Inadequate protective equipment for the jet and debris.
• Pointing the jet near hands, feet or other people.
• Using untrained operators on high-pressure equipment.

Records and retention (high level)

Assessments and any permit are generally kept so the work can be traced. How long they are retained depends on the employer, the work and the applicable rules.

This page does not state a required period — confirm retention with the applicable law and the official authority.

Completing and sharing as a PDF

Jetting documents are commonly compiled, signed and stored as PDFs and kept as records. Exporting to PDF supports the record; it does not make any document official or guarantee compliance.

Employer notes

• Use trained operators and suitable equipment for the pressure.
• Require exclusion zones, protection and a quick shut-off.
• Keep others clear of the jet line.
• Keep assessments and any permit as records.

Worker notes

• Only jet if you are trained and the equipment is suitable.
• Set up the exclusion zone and use the protection provided.
• Never point the jet near people or your own hands and feet.
• Know how to shut off the pressure quickly.

Country considerations

Rules for high-pressure jetting and operator competence vary by country, and the official authority differs. This page is general and high-level — not a statement of any country’s law and not a guarantee of validity.

Confirm current requirements with the official authority for your country and a qualified professional.

Who is responsible

The employer is responsible for safe jetting, for ensuring exclusion and protection are real, and for compliance. This page is an educational overview with a template example; it does not authorise any jetting and does not transfer responsibility.