Given: a section of pipe has to be installed between 2 manholes which are 300′ apart. The difference in elevation between the manhole inverts is 1′. What is the correct percent of grade setting when using a laser?

Given: a section of pipe has to be installed between 2 manholes which are 300′ apart. The difference in elevation between the manhole inverts is 1′. What is the correct percent of grade setting when using a laser?