plumbing

• 1902Plumbing Trade was recognized by the City of Manila.
• JOHN F. HAAS – first Chief of Division in Plumbing Construction and Inspection
• ·        RA 1378 – National Plumbing Code of the Philippines (Jan. 28, 1959) (Rev. Dec. 21, 1999)
• ·        PD 1067 – Water Code of the Philippines (1977)               - Professionalism Act (March 10, 2004)
• ·        Solid Waste – discharged by the water closet
• ·        Liquid Waste – coming from various fixtures.
• Soil Pipe – solid waste to the septic tank
• ·        Waste Pipe – liquid waste to street canal
• BACKFLOW- flow of water, or other liquid, mixture or substances intro distributing pipes, of a potable supply of water from any source, other than its intended source.
• BACK SIPHONAGE – refers to the backflow of used contaminated or polluted water from a plumbing fixture or vessel into a water supply pipe due to a negative pressure in such a pipe.
• BIB – is synonymous of faucet, cock, tap, plug, etc. it can put hose.
• BRANCH- other part of piping system other than main riser or stack
• Water supply -> riser
• Drainage system -> stack
• VSTR – Vent Stack Through Roof
• RISER – a water supply pipe which extend vertically one full storey or more to convey water to branches or fixtures
• ROUGH-IN (ABANG) – installation of all parts of the plumbing system.
• STACK – is the vertical main of a system of soil, waste or vent pipe.
• TRAP – is a fitting or device so designed as to provide when properly vented a liquid seal that will prevent the back passage of air without materially affecting the flow of sewage through it.
• THE SEPTIC TANK

  -        a receptacle or vault used to collect organic waste discharged from the house sewer.
• During this retention period, about 60 – 70 percent of the suspended solid of the sewage is removed largely by sedimentation to form a semi-liquid substance called sludge. Parts of the solids are formed into floating scum.
• SCUM – refers to the lighter organic materials that rises to the surface of the water.
• SLUDGE AND SCUM are both the process of ANAEROBIC BACTERIA transforming them into liquid and gases.
• This process is called DIGESTION. The solid matter reduced in sizes and consequently change in character.
• SEDIMENTATION -> upper portion the tank
• ANAEROBIC DECOMPOSITION -> accumulated sludge at the bottom.
• AEROBIC BACTERIA - the life process is in the presence of material oxygen.
• ANEROBIC BACTERIA - absence of free oxygen.
• FACULTATIVE BACTERIA - functions with or without oxygen.
• STABILIZATION – process of decomposition.
• SEPTIC – a sewage that turns dark and smell unpleasantly due to anaerobic decomposition
• Types of Admixtures

  -        Accelerator

  -        Retarder

  -        Waterproofing
• 1.      Minimum inside dimension of a septic tank is 0.90 m wide by 1.50 m long.
• 1.      1.20 meters depth of a liquid content is necessary. The depth should not be deeper than the natural ground water table.
• THREE MAJOR COMPONENTS OF DRAINAGE INSTALLATION OF A PLUMBING SYSTEM

  ·        DRAINAGE

  ·        WASTE

  ·        VENT  (DWV)
• DRAINAGE PIPE – refers to an installation that receives and coveys discharges from water closet with or without waste coming from other fixtures.
• WASTE PIPE – a pipe that receives waste from any fixtures except water closet.
• FIXTURE – refers to soil sink, lavatory, bathtub, except water closet.
• VENT PIPE – functions as air passage or condult ti ventilate the drainage and waste pipe installation.
• SOIL BRANCH – horizontal pipe affixed by the word soil.