from The Century Dictionary.
- noun In plumbing, a pipe connecting the over-flow of a wash-bowl, sink, or bath-tub with a waste-, soil-, or sewer-pipe.
Sorry, no etymologies found.
Reaching the level of the overflow, the water escapes, fills the lower compartment, covers the middle diaphragm, then passes through the second overflow-pipe to cover the lower diaphragm, next runs through the overflow-pipe of the third diaphragm on to the bottom of the purifier, and lastly makes its exit, through a siphon.
The water may flow into a stone trough provided with an overflow-pipe, by which the quantity discharged may be ascertained at any time, so as to compare the drainage before and after rain, &c.