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<br />PLUMBING CODE
<br />if of unnecessary depth, the sewer may be brought up to a
<br />proper grade by the use of one-eighth bends, same to be
<br />installed as near the property line as possible.
<br />Sec. 26. Soil, Waste or Vent Stacks:
<br />(a) Every building in which plumbing fixtures are
<br />installed shall have a soil or waste stack or stacks extending
<br />full size through the roof. Soil and waste stack shall be
<br />as direct as possible, free of sharp bends and turns. No
<br />long off sets will be permitted in a three inch soil stack.
<br />All off sets shall be avoided where possible. Short off sets
<br />in three inch stacks shall be made with one-eighth ,Mends
<br />or long sweep bends. Diameter of branches in threea i}ich
<br />soil stacks for water closets must be increased to four i* es.
<br />t-,
<br />(b) Waste pipe branches must connect direct witl' 0-11
<br />stack or may connect into the side of closet bends.
<br />A,
<br />(cf, All soil, waste and vent stacks shall extend ?not
<br />less Than one foot above roof of building or contigµous
<br />prop#_rty ; provided that where stack terminals are located
<br />within twelve feet of any window or air shaft they shall
<br />extetid not less than three feet above same; and if roofs
<br />are jised for other purposes than weather protection, they
<br />shall;', be extended not less than six feet above roof.
<br />( d", The required size of soil or waste stacks shall %e
<br />det : fined from the distribution and total of all fixtdre
<br />uni4 connected to the stack in accordance with the tele
<br />of ' "" capacity contained in this Chapter, except that' do
<br />wa ;closets shall discharge into a stack less than three
<br />inchV- in diameter. -
<br />(el' All main vents or vent stacks shall connect full:Uze
<br />at th`iir base to the main soil or waste pipe at or below
<br />the ld,.west fixture branch, and shall extend undiminished
<br />in size!=above the roof or shall be reconnected with the main
<br />soil oZ.waste vent at least six inches above the top of r.the '
<br />highest, fixture. • "'( �"''
<br />6
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<br />14 CITY OF CHARLOTTESVILLE r 1'
<br />' (f) All maf` or branch dry vents shall be eitherA ` t
<br />iron, brass, copper, galvanized wrought iron or galvd
<br />steel. The size of main vents or vent stacks shall be -de-
<br />termined from the size of the soil or waste stack vented
<br />and the total number of fixture units drained into it and
<br />..4
<br />;the developed length of the vent in accordance with the
<br />following table of pipe capacity contained in this Chapter.
<br />(g) A branch relief vent, proportionate in size to the
<br />volume of soil or waste fixture units discharging above,
<br />with the branch taken off the main vent at an angle of 45
<br />degrees to vertical and connected in front of the nearest
<br />fixture branch will be required and in accordance with
<br />the table of pipe capacity contained in this Chapter and
<br />the minimum required size branch vent may be connected
<br />to this relief vent. This sub -section shall also apply to the
<br />relief Vent required for a circuit or loop vent.
<br />(h) All vent pipes must be graded so as to drip back to
<br />the soil or waste pipe. All vent pipes connecting to a hori-
<br />zontal soil or waste pipe must be taken off above the center
<br />line of.the pipe when possible, and the vertical pipe must
<br />rise vertically or at an angle of 45 degrees to the veritic
<br />4
<br />to a point six inches above the fixture it is venting b or
<br />.
<br />off setting horizontally or connecting to the branch, mai
<br />' waste soil vent. o
<br />'i
<br />(i) ircuit or loop vents will be permitted as follows:
<br />A bratosoil or waste pipe to which two and not more than
<br />eight water closets, pedestal urinals, trap standard slop
<br />sinks, shower stalls or floor drains with three inch or. larger r
<br />traps and waste pipe are connected in series may be rented
<br />by a circuit or loop vent which shall be taken off in front
<br />of the last fixture connection. Where fixtures discharge
<br />above such branch, each branch shall be provided with
<br />a relief vent taken off in front of the first fixture con- i
<br />r3pction. A branch relief vent, proportionate in size to the
<br />�ume of soil or waste fixture units discharging above,
<br />with the branch taken off the main vent at an angle of
<br />45 degrees to'Vertical and connected in front of the•nearest
<br />r
<br />16
<br />CITY OF CHARLOTTESVILLE
<br />..�.� t"•'• '.
<br />e, _branch, will be required and in accordance' with
<br />-of pipe capacity ,contained in this sectioA. ,a'nd the y
<br />imum required size branch vent may be connected to
<br />s relief vent. This sub -section shall also apply to the
<br />ief vent required for a circuit or loop vent.
<br />49't�
<br />(j) Vent pipes from closets, bath tubs, sinks, urinals,
<br />Wash trays and all other plumbing fixtures shall be of
<br />ether brass, copper, cast iron, galvanized wrought iron
<br />o galvanized steel, with proper fittings as hereinprovided.
<br />ximum length of wet vents are limited to a distance of
<br />f teen feet horizontal and six feet vertical.
<br />S . 27. Waste Pipes:
<br />(a) No waste pipe shall be 1_ �s than one and one-half
<br />rhes for a fixture, exmggt irf ease of a single lavatory,
<br />jd nking fountain or fountain cuspidor; the waste to each
<br />o these fixtures may be of one and one-quarter inch pipe.
<br />In no case shall the waste pipe from any other fixture
<br />connect to the building side or in the seal of another fixture
<br />trap. All waste pipe to be of cast iron, brass, copper, gal-
<br />vanized wrought iron or galvanized 'steel, with proper
<br />recessed fittings.
<br />(b) On all galvanized wrought iron or galvanized steel
<br />Soil, waste or vent pipes, the ends of pipe must be carefully
<br />reamed to prevent a reduction in the bore.
<br />(c) Standing waste on all plumbing fixtures is pro-
<br />hibited and no fixture will be permitted to be installed
<br />unless it is so constructed that no water in the fixture can
<br />r come in contact with the waste pipe while the fixture
<br />Xis in use.
<br />} c. 28. Refrigerator Drains:
<br />No refrigerator or other receptacle in which provisions
<br />are stored shall be connected with any drain, soil, waste
<br />or vent pipe, or discharged on the ground beneath_ft�i,
<br />building; but in every case there shall be an open tx
<br />tray beneath the refrigerator or other receptacle sgr' »'., , a
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<br />14 CITY OF CHARLOTTESVILLE r 1'
<br />' (f) All maf` or branch dry vents shall be eitherA ` t
<br />iron, brass, copper, galvanized wrought iron or galvd
<br />steel. The size of main vents or vent stacks shall be -de-
<br />termined from the size of the soil or waste stack vented
<br />and the total number of fixture units drained into it and
<br />..4
<br />;the developed length of the vent in accordance with the
<br />following table of pipe capacity contained in this Chapter.
<br />(g) A branch relief vent, proportionate in size to the
<br />volume of soil or waste fixture units discharging above,
<br />with the branch taken off the main vent at an angle of 45
<br />degrees to vertical and connected in front of the nearest
<br />fixture branch will be required and in accordance with
<br />the table of pipe capacity contained in this Chapter and
<br />the minimum required size branch vent may be connected
<br />to this relief vent. This sub -section shall also apply to the
<br />relief Vent required for a circuit or loop vent.
<br />(h) All vent pipes must be graded so as to drip back to
<br />the soil or waste pipe. All vent pipes connecting to a hori-
<br />zontal soil or waste pipe must be taken off above the center
<br />line of.the pipe when possible, and the vertical pipe must
<br />rise vertically or at an angle of 45 degrees to the veritic
<br />4
<br />to a point six inches above the fixture it is venting b or
<br />.
<br />off setting horizontally or connecting to the branch, mai
<br />' waste soil vent. o
<br />'i
<br />(i) ircuit or loop vents will be permitted as follows:
<br />A bratosoil or waste pipe to which two and not more than
<br />eight water closets, pedestal urinals, trap standard slop
<br />sinks, shower stalls or floor drains with three inch or. larger r
<br />traps and waste pipe are connected in series may be rented
<br />by a circuit or loop vent which shall be taken off in front
<br />of the last fixture connection. Where fixtures discharge
<br />above such branch, each branch shall be provided with
<br />a relief vent taken off in front of the first fixture con- i
<br />r3pction. A branch relief vent, proportionate in size to the
<br />�ume of soil or waste fixture units discharging above,
<br />with the branch taken off the main vent at an angle of
<br />45 degrees to'Vertical and connected in front of the•nearest
<br />r
<br />16
<br />CITY OF CHARLOTTESVILLE
<br />..�.� t"•'• '.
<br />e, _branch, will be required and in accordance' with
<br />-of pipe capacity ,contained in this sectioA. ,a'nd the y
<br />imum required size branch vent may be connected to
<br />s relief vent. This sub -section shall also apply to the
<br />ief vent required for a circuit or loop vent.
<br />49't�
<br />(j) Vent pipes from closets, bath tubs, sinks, urinals,
<br />Wash trays and all other plumbing fixtures shall be of
<br />ether brass, copper, cast iron, galvanized wrought iron
<br />o galvanized steel, with proper fittings as hereinprovided.
<br />ximum length of wet vents are limited to a distance of
<br />f teen feet horizontal and six feet vertical.
<br />S . 27. Waste Pipes:
<br />(a) No waste pipe shall be 1_ �s than one and one-half
<br />rhes for a fixture, exmggt irf ease of a single lavatory,
<br />jd nking fountain or fountain cuspidor; the waste to each
<br />o these fixtures may be of one and one-quarter inch pipe.
<br />In no case shall the waste pipe from any other fixture
<br />connect to the building side or in the seal of another fixture
<br />trap. All waste pipe to be of cast iron, brass, copper, gal-
<br />vanized wrought iron or galvanized 'steel, with proper
<br />recessed fittings.
<br />(b) On all galvanized wrought iron or galvanized steel
<br />Soil, waste or vent pipes, the ends of pipe must be carefully
<br />reamed to prevent a reduction in the bore.
<br />(c) Standing waste on all plumbing fixtures is pro-
<br />hibited and no fixture will be permitted to be installed
<br />unless it is so constructed that no water in the fixture can
<br />r come in contact with the waste pipe while the fixture
<br />Xis in use.
<br />} c. 28. Refrigerator Drains:
<br />No refrigerator or other receptacle in which provisions
<br />are stored shall be connected with any drain, soil, waste
<br />or vent pipe, or discharged on the ground beneath_ft�i,
<br />building; but in every case there shall be an open tx
<br />tray beneath the refrigerator or other receptacle sgr' »'., , a
<br />
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