Sample interview questions: How do you ensure that plumbing designs are resistant to corrosion and can withstand harsh water conditions?
Sample answer:
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Material Selection:
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Utilize corrosion-resistant piping materials such as copper, stainless steel, or CPVC.
- For drain lines, opt for PVC or ABS pipes due to their resistance to harsh chemicals and acidic wastewater.
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Select appropriate fittings and valves made from materials compatible with the piping system.
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Proper Sizing:
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Accurately size pipes to ensure adequate water flow and pressure while minimizing the risk of corrosion.
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Avoid oversizing pipes, as this can lead to stagnant water and increased corrosion potential.
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Sloped Drainage Pipes:
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Maintain proper slopes in drain lines to facilitate efficient drainage and prevent water from pooling.
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Adequate slope angles help minimize the risk of corrosion and buildup of solids.
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Avoid Galvanic Corrosion:
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Prevent the contact of dissimilar metals in plumbing systems to minimize galvanic corrosion.
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Use dielectric unions or insulating materials to separate dissimilar metals and break the corrosion path.
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Use Protective Coatings:
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Apply protective coatings, such as epoxy or enamel, to metal pipes and fittings to enhance their corrosion resistance.
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Ensure that the coatings are compatible with the specific piping material and water conditions.
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Cathodic Protect… Read full answer
Source: https://hireabo.com/job/12_0_8/Plumbing%20Designer