Double Ring Brick Sewer

A brick sewer which consists of two layers of bricks.

Downtime

Time lost when the MTBM is unable to operate; generally associated with equipment failure.

Drainage Fixture Unit

A drainage fixture unit, often referred to as a fixture unit or FU, is a unit of measure of the waste water flow generated by an appliance, such as a sink or toilet. For example, the typical full bath has a value of 9 FUs. See availability fee for cost.

Drill Bit

A tool which cuts the ground at the head of a Drill String1) The total length of drill rods/pipe, bit, swivel joint etc. in a drill bore-hole. 2) System of rods used with cutting bit or compaction bit attached to the drive chuck., usually by mechanical means but may include Fluid Jet Cutting.

Drill String

1) The total length of drill rods/pipe, bit, swivel joint etc. in a drill bore-hole. 2) System of rods used with cutting bit or compaction bit attached to the drive chuck.