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PTE Describe Image sample: process diagram (a home rainwater system in four steps)

A PTE Describe Image task with a model answer, the structure behind it and how to fit it into 40 seconds.

Updated 2026-10-13

The image

Process diagram of a home rainwater system in four steps.
Process diagram of a home rainwater system in four steps.

You have 25 seconds to prepare and 40 seconds to speak.

Sample answer (68 words, about 35 seconds)

The diagram shows how a home rainwater system works in four stages. First, rainwater is collected from the roof. It then passes through a filter that removes leaves and dirt, before being stored in a tank. Finally, a pump sends the water to the garden and toilets. When the tank is full, extra water overflows to the stormwater drain. Overall, the system allows households to reuse rainwater efficiently.

The structure behind it

  1. Introduce: "The process diagram shows/compares…" (what, where, when)
  2. Main feature: the biggest, highest or most important thing
  3. Two details with numbers: one comparison, one change or contrast
  4. Conclusion: "Overall, …"

Keep a steady pace and don't stop for more than 3 seconds; a long pause can end your recording. Fluency and pronunciation count for more than describing every detail.

Practise it

Try this image yourself on the Describe Image practice page, which records your answer on your device and shows your start time and pauses. More: all Describe Image examples.