01

Compatibility comes first

Connector type, maximum pressure, required flow, hose diameter and nozzle thread must match the pressure washer and the drain. A hose rating should exceed the machine’s working pressure with a suitable safety margin defined by the manufacturer.

  • Pressure and flow range
  • Connector and adaptor
  • Hose rating and bend radius
  • Nozzle size and jet direction
02

Nozzle choice changes behaviour

Rear jets provide propulsion and flushing; a forward jet may help open soft material but can direct water and debris ahead. Rotating nozzles and penetrating heads have different demands and risks.

  • Rear-only flushing nozzle
  • Forward-jet penetrating nozzle
  • Rotating cleaning nozzle
  • Hose marker and retrieval control
03

A safer decision process

  1. 1

    Confirm pipe route and condition

  2. 2

    Match every rating and connector

  3. 3

    Insert the nozzle before pressurising

  4. 4

    Operate from a stable position with protective equipment

  5. 5

    Retrieve slowly while flushing if the manufacturer directs

Important safety point

High-pressure water can cause injection injuries and property damage. Never point a nozzle at a person, operate it outside the pipe or use a petrol-powered pressure washer indoors.