DEFINITION OF TERMS (H-L)

HEIGHT OF BUILDING

• the vertical distance from the "Grade Line" to the highest point of the coping of a flat roof

• or to the top line of roof or to the average height of the highest gable of a pitch or hip-roof

HORIZONTAL BRANCH

• is a drain pipe extending laterally from a soil or waste stack or building drain with or without vertical sections or branches,

• which receives the discharge from one or more fixture drains and conducts it to the soil or waste stack or to the building drain.

HORIZONTAL PIPE

• is any pipe or fitting installed in a horizontal position or which forms an angle of not more than forty-five (45) degrees with the horizontal plane.

HOUSE DRAIN

• is that part of the lowest horizontal piping of a plumbing system

• which receives the discharges from soil, waste and other drainage pipes inside of a building

• and conveys it to the house sewer outside of the building.

HOUSE SEWER

• is that part of a plumbing system extending from the house drain at a point 0.60 meters from the outside face of the foundation wall of a building

• to the junction with the street sewer or to any point of discharge, and conveying the drainage of one building site.

HOUSE STORM SEWER

is the pipeline from the building to the public or street storm drainage system.

INDIRECT WASTE PIPE

• is a pipe that does not connect directly with the drainage system but conveys liquid wastes by

• discharging into a plumbing fixture, interceptor or receptacle directly connected to the drainage system.

INDIVIDUAL VENT

• is a pipe installed to vent a fixture trap

• which collects with the vent system above the fixture served or terminates in the open air.

INDUSTRIAL WASTE

• any and all liquid or water-borne waste from industrial or commercial processes, except domestic sewage

INSANITARY

• condition contrary to sanitary principles or injurious to health .

INTERCEPTOR (CLARIFIER)

• is a device designed and installed to separate and retain deleterious, hazardous or undesirable matters from normal wastes and permits normal sewage or liquid wastes

• to discharge into the disposal terminal by gravity.

INVERT

• The lowest portion of the interior part of any pipe or conduit that is not vertical.

LABELED

• equipment or materials bearing a label of a listing agency

• all labels shall be embossed, stamped or indelibly marked with stickers, glued on the finished product indicating the weight, specifications and logo of the manufacturer.

LATERAL

• in plumbing, a secondary pipeline. In sewerage, a common sewer to which no other branch sewer is connected.

• It receives sewage from building service connections only.

LATRINE

• a water closet consisting of a continuous trough containing water.

• The trough extends under two or more adjacent seats.

• Prohibited by health authorities for permanent installations.

LEADER

• a pipe connected from building gutter to the downspout or conductor.

LENGTH OF PIPE

• is measured along its center-line.

LIQUID WASTE

• is the discharge from any fixture, appliance or appurtenance in connection with a plumbing system

• which does not receive fecal matter.

LOCAL VENT

a pipe or shaft to convey foul air from a plumbing fixture or a room to the outer air.

LOOP OR CIRCUIT VENT

• a vertical vent connection on a horizontal soil or waste pipe branch at a point downstream of the last fixture connection

• and turning to a horizontal line above the highest overflow level of the highest fixture connected thereat;

• the terminus connected to the stack vent in the case of loop venting or to the vent stack nearby in the case of circuit venting.

LOT

• a single area of land legally recorded or validated by other means acceptable to the Administrative Authority

• where a building is situated or site of any work regulated by this Code

LAVATORY

A FIXTURE DESIGNED FOR THE WASHING OF HANDS OR FACE. ASLSO CALLED A WASH BASIN

LEACHING CESSPOOL

A CESSPOOL THAT IS NOT WATER TIGHT.