Sand overthrow percentage

We've noticed that estimates of sand applied as topdressing often overestimate the actual rate by more than 20%.

That is, measuring the actual amount of sand applied by catching some of it from a known area, and then weighing it, or measuring its volume—with the method explained in this video—will give you one rate. Then if you take the total amount of sand applied, divided by the area the sand has been applied to, you'll often get a rate that…