RA1378: PLUMBING CODE: DEFINITION OF TERMS (D-G)

DEAD-END

the extended portion of a pipe that is closed at one end to

which no connections are made on the extended portion, thus permitting the

stagnation of liquid or air therein.

DEPARTMENT HAVING JURISDICTION

the Administrative

Authority and includes any other law enforcement agency concerned by any

provision of this Code, whether such agency is specifically named or not.

DEVELOPED LENGTH

the length of a pipe along its centerline and

fittings.

DOMESTIC SEWAGE

the liquid and water-home wastes derived from

the ordinary living processes, free from industrial wastes and of such

character that permit satisfactory disposal without special treatment. It is

discharged into the public sewer or into a private sewage disposal system .

DOUBLE-BEND FITTING

a pipe fitting with adjacent reverse bends and

shaped like the letter "S''

DOUBLE OFFSET

DOWNSPOUT

the vertical portion of a rainwater conductor

DRAIN

a pipe, which carries ground and surface waters, storm water or

wastewater into a building drainage system

DRAINAGE SYSTEM

includes all the pipings within public or private

premises which convey sewage or other liquid wastes to a legal point of

disposal but does not include the mains of a public sewer system or a public

sewage treatment or disposal plant.

DRY VENT

a vent that does not carry liquid or water-borne wastes

DURHAM SYSTEM

a term used to describe soil or waste system where

all pipings are of threaded pipe, tubing or other such rigid construction using

recessed drainage fittings to correspond to the types of piping

EFFECTIVE OPENING

is the minimum cross-sectional area at the point of water supply

discharge measured or expressed in terms of (l) diameter of a circle; (2) if the opening is not

circular, the diameter of a circle of equivalent cross-sectional area

EXISTING WORK

the on-going installation of the plumbing system or

any part thereof which has been installed prior to the effectivity of this Code.