Pipe Slope Formula:
Definition: This calculator determines the slope (gradient) of sanitary pipes based on height difference and pipe length.
Purpose: It helps plumbers, engineers, and construction professionals ensure proper drainage by calculating the correct pipe slope.
The calculator uses the formula:
Where:
Explanation: The slope is calculated by dividing the vertical height difference by the horizontal length of the pipe.
Details: Correct slope ensures efficient wastewater flow, prevents standing water, and reduces the risk of clogs in sanitary systems.
Tips: Enter the height difference (vertical drop) and pipe length (horizontal run) in meters. Both values must be > 0.
Q1: What's the recommended slope for sanitary pipes?
A: Typically 2% (0.02) for 4-inch pipes, but local codes may vary.
Q2: How do I convert slope to degrees?
A: Use arctangent: degrees = arctan(S). This calculator gives the slope ratio.
Q3: What if my pipe isn't perfectly horizontal?
A: The length (L) should be the horizontal projection, not the actual pipe length if installed at an angle.
Q4: Can I use different units?
A: Yes, but both measurements must use the same units (e.g., both in feet or both in meters).
Q5: What does a slope of 0.01 mean?
A: It means 1 cm drop per meter of pipe length, or a 1% grade.