Waterline Management and Microbial Control · CDA

Which step is essential at the end of each workday for DUWL safety?

  1. Turning off lights in the operatory
  2. Purging waterlines per system design
  3. Running only warm water briefly
  4. Reducing disinfectant concentration
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Correct answer: Purging waterlines per system design

Draining or purging prevents stagnation, which promotes biofilm growth. End-of-day maintenance is a critical control measure.

Difficulty: Medium Question 20 of 20

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