rough in n.— «Plumbers use what’s called a “rough in” sheet that comes with exposed sinks to place the water and drain lines inside the wall exactly where they need to stick out under the fixture.» —“Single to double...
grit pit n.— «Grit pits are pits about 10-feet-by-10-feet wide that run under main sewer lines and catch debris filtered through the main line. The purpose of the plastic-walled pit is to collect debris that would normally accumulate...