User's guide

User’s GUide — 43
Calculating Drop
If a pipe Run requires 1/8" drop per foot for drainage, how much
total drop is required for a 25' Run?
KEYSTROKE DISPLAY
  0.
1. Enter the Slope (Drop):
1    SLP 0-1/8 INCH
2. Calculate the total drop (Offset):
2 5    OFST 0 FEET 3-1/8 INCH
Find the slope of a pipe Run if it drops 6 inches over 50 feet.
What is its Angle and Percent Grade?
KEYSTROKE DISPLAY
  0.
1. Enter the Run:
5    RUN 50 FEET 0 INCH
2. Enter the Offset:
6   OFST 6 INCH
3. Calculate the Slope, Angle and Percent Grade:
 SLP 0-1/8 INCH
 /
_
Ø 0.57º
 % GRD 1.
 GRD 0.01
Calculating Flow Rate
If you know the Area and Velocity, you can calculate the Flow
Rate. For this example, the velocity is 5 feet per second, and
the Area is 1.8 square inches.
(cont'd)