Sample interview questions: How do you approach system water quality testing and chemical treatment in hydronic applications?
Sample answer:
- Gather System Information:
- Collect data on the system’s age, type of piping, components, and operating conditions.
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Determine the system’s design temperature and pressure, as well as the makeup water source.
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Conduct a Visual Inspection:
- Inspect the system for signs of corrosion, leaks, and scale buildup.
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Check the condition of expansion tanks, air vents, and strainers.
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Take Water Samples:
- Collect water samples from various system points, such as the boiler, supply and return lines, radiators, and makeup water source.
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Label and date the samples properly.
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Perform Water Quality Tests:
- Test the water samples for pH, alkalinity, hardness, chloride, sulfate, and dissolved oxygen content.
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Compare the results to industry standards and manufacturer’s recommendations.
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Interpret Test Results:
- Analyze the water quality test results to identify potential problems, such as corrosion, scale formation, or bacterial growth.
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Determine if the water quality meets the system’s requirements and manufacturer’s specifications.
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Recommend Chemical Treatment:
- Select appropriate chemical treatment products ba… Read full answer
Source: https://hireabo.com/job/12_0_14/Hydronic%20Technician