Sample interview questions: How do you ensure proper drainage and slope in plumbing installations?
Sample answer:
Ensuring Proper Drainage and Slope in Plumbing Installations
- Use Grade Indicators: Level indicators accurately determine the required slope.
- Plan for Adequate Slope: Codes typically mandate a minimum slope of 1/4 inch per foot for drains and 1 inch per foot for vents.
- Install Level Drain Lines: Use a level or laser level to ensure horizontal drain lines.
- Create a Slope: For continuous downward flow, install drainpipes and vent lines with a gradual downward angle, following the specified slope.
- Maintain Consistent Slope: Avoid abrupt changes in slope or creating dips that can trap water.
- Consider Pipe Size and Length: Larger pipes and longer lines require steeper slopes to facilitate proper drainage.
- Use Rotary Pipe Cutters: Ensure clean, square cuts on pipes to avoid snags that obstruct flow.
- Deburr Cut Edges: Remove sharp edges from cut pipe ends to prevent snagging and improve drai… Read full answer
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