In this problem, you need to write the equation with a common unit of measurement — either feet or inches.

Measure slope of yard. The first step is to find out how large or small the existing slope is. In google earth, you can find the elevation of the top and bottom of your slope and calculate the difference. Enter measurements in us or metric units and get volume.

Hold the spirit level at its level position out from the slope. To find the percentage of slope. How to measure slope in your yard.

If your yard has a small slope, such as the kind that is surrounded on all sides by flat ground, you can easily measure it by simply using a stick. One of the oldest and eas. You should then tie a piece of string at.

Convert the rise and run to the same units and then divide the rise by the run. Move the decimal two places to the right to convert the answer to a percentage. Steps to measure your slope 1.

Slope refers to the angle that the pipe slopes downward to allow gravity to pull the water toward the disposal point. Of course, this calculation is simple when you’re using 100ft as your distance, and your yard. Changing 80 feet to inches makes for a big number;

The key to a great drain. A 1 foot rise divided by a 50 foot run is.02. Divide the rise by the run.