double-lumen drain

double-lumen drain

a drain, such as a sump drain, consisting of two tubes, one inside the other.
References in classic literature ?
Don't let your sober face elate you, however; you don't know what it may come to.
He, standing a little way within the field, was remonstrating angrily with a man of his own class, who stood with his back to the breach and his hands in the pockets of his snuff-colored clothes, contemplating the procession with elate satisfaction.
His eye, elate with happiness, was reading eagerly the tearful gaze of Haidee, when suddenly the door opened.
This submissive assent given with such readiness did not soothe him, did not elate him; it gave him, inexplicably, that sense of terror we experience when in the midst of conditions we had learned to think absolutely safe we discover all at once the presence of a near and unsuspected danger.