ALWAYS USE THE CLOSEST
TENTH WHEN USING THE GRAPH
EXAMPLE 3.14 USE 3.1
Figure 2-3. Sand Dial Setting Graph.
(4) Stone Dial Setting (4, fig. 2-2). In this calculation (X) refers to the answer of your first calculation and (S)
refers to the answer of your second calculation and is the number used to determine the setting using one of three graphs
depending upon the size of stone or gravel you are using. In the example being used 3/4 in. crushed stone is being used
so the setting figure will be taken from figure 2-5. The three graphs are as follows:
(a) Figure 2-3 - For 1/4 in. and smaller crushed stone or 3/8 in. and smaller gravel.
(b) Figure 2-4 - For 1/2 in. up to 1 in. gravel or 3/8 in. to 1/2 in. crushed stone.
(c) Figure 2-5 - For 5/8 in. up to 1 in. crushed stone.