Abstract: A pivoting and telescoping or slidably-adjustable hose support, typically for draining the holding tanks of recreational vehicles, includes a length of cross-sectionally curved, slidably-adjustable, trough-like support segments fitted with pivoting legs of the same cross-section, which legs may be of the same or dissimilar length. In a preferred embodiment the receiving support segment is characterized by longitudinal edge rails shaped to define rail slots that receive the upper longitudinal edges of the telescoping support segment, to impart strength to the hose support. Furthermore, the pivoting legs are typically constructed of segments of the receiving support segment and are typically pivotally attached to the sides or walls of the receiving and telescoping support segments by means of brads or pins.