Current through Register Vol. 50, No. 9, March 1, 2024
RELATES TO: 318.015, 318.130, 318.150,
NECESSITY, FUNCTION, AND CONFORMITY:
KRS
318.130 requires the department to promulgate
administrative regulations establishing the Kentucky State Plumbing Code
regulating plumbing, including the methods and materials that may be used in
Kentucky for soil, waste, and vent systems. This administrative regulation
establishes the minimum requirements for and manufacturer's specification
number of the material accepted in the installation and design of soil, waste,
vent systems, traps, and clean-outs in each type of plumbing system.
Section 1. Materials.
(1) Main or branch soil, waste, and vent
pipes and fittings within or underneath a building shall be:
(a) Hub and spigot extra heavy or service
weight cast iron;
(b) No-hub
service weight cast iron;
(c)
Galvanized steel;
(d) Galvanized
wrought iron;
(e) Lead;
(f) Brass;
(g) Types K, L, M, and DWV copper;
(h) Standard high-frequency welded tubing
produced and labeled with the latest ASTM specifications;
(i) Types R-K, R-L, R-DWV brass
tubing;
(j) DWV brass tubing
produced and labeled as ASTM B587;
(k) Seamless stainless steel
tubing;
(I) Grade G or H produced
and labeled as ASTM A312;
(m) PVC
schedule 40 or 80 produced and labeled as ASTM D2665, D1784, and
F891;
(n) Coextruded composite PVC
pipe produced and labeled ASTM F1488;
(o) ABS schedule 40 or 80 produced and
labeled as ASTM D2661, F1488, or F628;
(p) CPVC schedule 40 or 80; or
(q) Silicon iron or borosilicate.
(2) A main or branch soil waste
and vent pipe and fittings underground shall either be:
(a) Hub and spigot extra heavy or service
weight cast iron;
(b) No-hub
service weight cast iron;
(c) Type
K or L copper pipe;
(d) Type R-K,
R-L brass tubing;
(e) Lead;
or
(f) Silicon iron or borosilicate
pipe and fittings or plastics DWV established in this section.
(3) Underground waste pipe
installed beneath a concrete slab shall:
(a)
Not be less than two (2) inches in diameter; and
(b) Extend no less than twelve (12) inches
above the concrete slab.
(4) A trap for a bathtub, lavatory, sink, or
other similar fixture shall be made of:
(a)
Tubular brass;
(b) Tubular ABS or
PVC produced and labeled as ASTM F409;
(c) Cast brass;
(d) Cast iron;
(e) Lead;
(f) Schedule 40 PVC;
(g) Schedule 40 ABS;
(h) Grade G or H produced and labeled as ASTM
A312; or
(i) CPVC schedule 40 or
80.
(5) A tubular or
schedule 40 PVC, or a tubular or schedule 40 ABS p-trap shall be either the
union-joint or solvent welded type.
(6) A tubular brass trap shall be seventeen
(17) gauge.
(7) A tubular brass
trap, tubular PVC trap, or tubular ABS trap shall not be installed below the
finished floor serving a fixture.
(8) The threads in a cast brass or cast iron
trap shall be tapped out of solid metal.
(9) A lead trap shall be extra
heavy.
Section 2. Trap
Requirements.
(1) Trap placement. A fixture
shall be separately trapped by a water-seal trap placed as near as possible to
the fixture, but not to exceed ten (10) inches from the bottom of the fixture
to the dip of the seal.
(2) Water
seal. A fixture trap shall have a water seal not less than two (2) inches nor
more than four (4) inches.
(3)
Waste discharge. Waste from a bathtub or other fixture shall not discharge into
a water closet bend.
(4) Double
trap prohibition. A fixture shall not be double trapped.
(5) A trap shall have a full-bore, smooth
interior waterway.
(6)
Self-cleaning. A trap shall be self-cleaning.
(7) Trap clean-outs. A trap clean-out shall
be optional.
(8) Trap levels and
protection. A trap shall be:
(a) Set true with
respect to its water seal; and
(b)
Protected from frost and evaporation
(9) Trap primers. Trap primers shall be
required on:
(a) Floor drains only in
mechanical rooms or boiler rooms; and
(b) All open receptacles that receive the
discharge from a temperature and pressure relief device discharge
only.
(10) Protected
Traps and Vents.
(a) A fixture trap shall be
protected against siphonage and backpressure.
(b) Air circulation shall be assured by means
of an individual vent.
(c) A crown
vent shall not be permitted.
(d) An
open drain, such as a hub drain or open receptacle, shall not be installed
within a plenum space.
(11) Distance of Trap from Vent.
(a)
1. The
distance between the vent and the fixture trap shall be measured along the
center line of the waste or soil pipe from the vertical inlet of the trap to
the vent opening.
2. The fixture
trap vent, except for a water closet or a similar fixture, shall not be below
the dip of the trap, and each ninety (90) degree turn in the waste line of the
main waste, soil, or vent pipe shall be washed.
3. A fixture trap shall have a vent located
with a developed length not greater than that in the following table:
Size of Fixture Drain (In Inches)
|
Distance Trap to Vent
|
1 1/4
|
2 ft. 6 in.
|
1 1/2
|
3 ft. 6 in.
|
2
|
5 ft.
|
3
|
6 ft.
|
4
|
10 ft.
|
(b) A fixture branch on a water closet shall
not be more than four (4) feet six (6) inches.
(12) Grease traps.
(a) If a grease trap is installed, it shall
be:
1. Placed as near to the fixture it serves
as practical; and
2. Approved by
the department.
(b) A
grease trap used inside a building shall:
1.
Have a sealed cover; and
2. Be
properly vented.
(c) A
grease trap for a restaurant, food service establishment, or other business
establishment shall be installed:
1. As
required by municipal ordinance; or
2. As required by
902 KAR
10:085, if a food establishment uses a private sewage
system.
(13)
Sand Traps. A sand trap shall be:
(a) Readily
accessible; and
(b) Serve the
purpose intended.
(14)
Slip joints.
(a) Slip joints shall be
permitted on the inlet side of the trap.
(b) A single one and one-half (1 1/2) inch
slip joint connection with an elastomeric gasket shall be permitted on the
outlet side of a one and one-half (1 1/2) inch trap.
Section 3. Pipe Clean-out
Requirements.
(1) The bodies of clean-out
ferrules shall be made in a standard pipe size, conforming in thickness to that
of the pipe and fittings and shall not extend less than one-quarter (1/4) inch
above the hubs in which they are placed.
(2) The clean-out cap or plug shall be
yellow-brass, PVC, or ABS no less than one-eighth (1/8) inch thick and shall
have a raised nut or recessed pocket for removal.
(3) In a building served by a stack over
forty-five (45) feet in height, a clean-out shall be provided at the base of
each vertical waste or soil stack.
(4) There shall be at least one (1) clean-out
in the building drain with a full-size branch inside the wall or outside the
building at a point not to exceed two (2) feet from the foundation wall. This
clean-out shall be a two (2) directional fitting or a combination of sanitary
tees or tee wyes to allow cleaning in both directions.
(5) If located outside the building, the
clean-out shall be extended to the finished grade for accessibility.
(6) A clean-out shall be of the same nominal
size as the pipe it serves up to four (4) inches and shall not be less than
four (4) inches for larger pipe.
(7) A clean-out installed on a four (4) inch
sewer shall be a two (2) directional fitting or a combination of sanitary tees
or tee wyes to allow cleaning in both directions.
(8) The distance between clean-outs in all
sewers shall not exceed 150 feet.
(9) An underground clean-out in a building
shall be:
(a) Flush with the floor or wall;
or
(b) Accessible by a
manhole.
(10) A floor or
wall connection of a fixture shall be regarded as a clean-out, except where the
house drain enters a building.
Section 4. Grades and Supports of Horizontal
Piping.
(1)
(a) Horizontal piping shall run in practical
alignment and at a uniform grade of not less than one-eighth (1/8) inch per
foot and shall be supported or anchored in accordance with the manufacturer's
recommendations.
(b) The supports
or anchors shall not be placed at intervals that exceed ten (10) feet in
length.
(2) A stack
shall be supported at its base, and each pipe shall be rigidly
secured.
(3) No-hub pipe and
fittings shall be supported at each joint of pipe and fittings.
(4) PVC and ABS schedule forty (40)
horizontal piping shall be supported at:
(a)
Intervals not to exceed four (4) feet;
(b) The base of each vertical stack;
and
(c) Each trap branch as close
to the trap as possible.
(5) PE pipe and fittings shall be
continuously supported with a V channel.
(6) A stack shall be rigidly supported at its
base and at the floor level.
Section
5. Change in Direction.
(1)
Except as provided in subsections (2), (3), or (4) of this section, a change in
direction shall be made by the appropriate use of a forty-five (45) degree wye,
half-wye, quarter (1/4), sixth (1/6), eighth (1/8) or sixteenth (1/16)
bend.
(2) A single sanitary tee may
be used in a vertical stack.
(3) A
sanitary tee may be turned on its back or side. If turned on its back or side,
a sanitary tee shall not be placed at an angle of more than forty-five (45)
degrees.
(4) A double sanitary tee
may be used on a vertical soil, waste, and vent line.
Section 6. Direct Flow Fittings and
Continuous-waste. A kitchen sink unit or a fixture with more than one (1) unit
may be connected with a continuous-waste, if a directional flow fitting is
used. Continuous-waste shall be either seventeen (17) gauge tubular brass,
schedule 40 ABS, schedule 40 PVC, tubular ABS, or tubular PVC.
Section 7. Prohibited Fittings.
(1) The following shall be prohibited:
(a) A double hub bend and double hub tee or
inverted hub on a sewer, soil, or waste line;
(b) The drilling and tapping of a house sewer
or house drain, soil, waste, or vent pipe;
(c) The use of a saddle hub; and
(d) Pipe installed with a hub or restriction
that reduces the area or capacity of the pipe.
(2) Prohibited traps. A trap shall not be
used if the trap depends upon:
(a) The action
of a movable part; or
(b) Concealed
interior partition for its seal.
Section 8. Dead Ends. A dead end shall not be
used in the installation of a drainage system.
Section 9. Protection of Material.
(1) A pipe passing under or through a wall
shall be protected from breakage.
(2) A pipe passing through or under cinder,
concrete, or other corrosive material shall be protected against external
corrosion.
(3)
(a) Soil, waste, or vent pipe shall not be
installed or permitted outside a building unless adequate provision shall be
made to protect it from frost.
(b)
The vent shall be increased to full size, the size of the increaser required as
if it were passing through the roof.
Section 10. Size of Soil and Waste Pipe per
Fixture Unit on One (1) Stack.
(1) The
following table, based on the rate of discharge from a lavatory as a unit,
shall be employed to determine fixture equivalents:
Pipe Size (In Inches)
|
Maximum Developed Length
|
Fixture Units
|
1 1/4
|
25 ft.
|
1
|
1 1/2
|
60 ft.
|
2
|
2
|
80 ft.
|
6
|
2 1/2
|
100 ft.
|
12
|
3
|
225 ft.
|
36
|
4
|
unlimited
|
172
|
5
|
unlimited
|
342
|
6
|
unlimited
|
576
|
8
|
unlimited
|
1600
|
10
|
unlimited
|
2900
|
12
|
unlimited
|
4600
|
(2) A
water closet shall be on a minimum of a three (3) inch soil and waste pipe with
a maximum of three (3) water closets or soil discharging fixtures per three (3)
inch soil and waste pipe. Four (4) water closets with a maximum flushing rate
of one and six-tenths (1.6) gallons per flush per water closet shall be allowed
to discharge into a three (3) inch soil and waste pipe.
Section 11. Soil and Vent Stacks.
(1) A building in which a plumbing fixture is
installed shall have a soil or waste and vent stack, or stacks, extending full
size through the roof.
(2) A soil
or waste and vent stack shall be as direct as possible and free from sharp
bends or turns.
(3) The required
size of the soil or waste and vent stack shall be determined from the total
fixture units connected to the stack in accordance with Section 10 of this
administrative regulation except that more than:
(a) Three (3) water closets with a flush rate
of three and five-tenths (3.5) gallons per flush shall not discharge into a
three (3) inch stack; and
(b) Four
(4) water closets with a flush rate of one and six-tenths (1.6) gallons per
flush or less shall not discharge into a three (3) inch stack.
Section 12. Future
Openings. An existing opening or an opening installed in a plumbing system for
future use shall be complete with its soil, waste, and vent piping and shall
comply with this administrative regulation.
Section 13. House Drain.
(1) The size of the house drain shall be
determined by the total number of fixture units connecting to the house drain.
The total area of vents through the roof shall be equal to that of the house
drain with a minimum of one (1) three (3) inch stack.
(2) If a three (3) inch house drain enters a
building, it shall be attached to a three (3) inch stack. One (1) floor drain
may be added to the house drain if it conforms with the requirements of Section
23 of this administrative regulation, without counting toward the fixture units
of the system.
Section
14. Soil and Waste Stacks, Fixture Connections.
(1) A soil and waste stack or branch shall
have correctly faced inlets for fixture connections.
(2) Each fixture shall be independently
connected to the soil or waste system.
(3) A fixture connection to a water closet,
floor-outlet pedestal sink, pedestal urinal, or other similar plumbing fixture
shall be:
(a) Cast iron;
(b) Lead;
(c) Brass;
(d) Copper; or
(e) Plastic closet bend.
(4) A three (3) inch closet bend shall have a
four (4) inch by three (3) inch flange.
Section 15. Changing Soil and Vent Pipes in
an Existing Building. Soil, waste, and vent piping shall be replaced with
appropriate size and materials for new work as prescribed by this
administrative regulation, if:
(1) The
fixtures are to be changed or replaced; and
(2)
(a) The
soil, waste, and vent piping in an existing building is not extended
undiminished through the roof; or
(b) There is sheet metal soil or waste
piping.
Section
16. Prohibited Connections.
(1) A
fixture connection shall not be made to a lead bend or a branch of a water
closet or a similar fixture.
(2) A
vent pipe above the highest installed fixture on a branch or main shall not be
used as a soil or waste pipe.
Section
17. Roof Extensions.
(1) A roof
extension of soil and waste stacks shall run full size at least one (1) foot
above the roof.
(2) If the roof is
used for purposes other than weather protection, the extension shall not be
less than five (5) feet above the roof.
(3)
(a) A
stack of less than three (3) inches in diameter shall be increased to a minimum
of three (3) inches in diameter before passing through a roof.
(b) If a change in diameter is made, the
fitting shall be placed at least one (1) foot below the roof.
Section 18. Terminals.
(1) Terminals on buildings. The terminus of a
stack or vent shall extend at least two (2) feet above the top edge of a door,
window, scuttle, or air shaft, if the roof terminus is:
(a) Within ten (10) feet of the top, bottom,
face, or side edge of a door, window, scuttle, or air shaft; and
(b) Not screened from the opening by a
projecting roof or building wall.
(2) Terminals Adjoining High Buildings.
(a) Except when soil, waste, or vent piping
is protected from freezing, a pipe extension of a new or existing building
shall be installed inside the building and shall not run or be placed on an
outside wall.
(b) If the new
building is built higher than the existing building, the owner of the new
building shall not locate a window within ten (10) feet of an existing vent
stack on the lower building.
Section 19. Main Vents to Connect at Base.
(1) All main vents or vent stacks shall:
(a) Connect full size at the base of the main
soil or waste pipe at or below the lowest fixture branch; and
(b) Extend undiminished in size through the
roof or be reconnected with the main soil or vent stack at least six (6) inches
above the rim of the highest fixture.
(2)
(a)
Except as established in paragraph (b) of this subsection, if it becomes
necessary to increase the size of a vertical vent stack, the entire stack shall
be increased from its base.
(b) If
the height of a stack which does not serve as the main vent is less than
forty-five (45) feet, it shall not be required to be increased from its
base.
Section
20. Vents; Required Sizes.
(1)
The required size of a vent or vent stack shall be determined by the total
number of fixture units it serves and the developed length of the vent,
interpolating, if necessary, between permissible length of vent given in the
following table:
MAXIMUM PERMISSIBLE LENGTHS OF VENTS
|
Pipe Size (In Inches)
|
Maximum Length (In Feet)
|
Fixture Units
|
1 1/4
|
30
|
2
|
1 1/2
|
150
|
10
|
2
|
200
|
24
|
2 1/2
|
250
|
36
|
3
|
300
|
72
|
4
|
400
|
240
|
5
|
600
|
420
|
6
|
800
|
720
|
(2)
Except for a residential installation, if a fixture opening is installed more
than twenty-five (25) feet of developed length from the point where it is
connected to the main soil or waste system, or, if more than ten (10) feet of
vertical piping is used, the vent shall be continued full size through the roof
or returned full size to the main vent.
Section 21. Branch and Individual Vents. A
branch or individual vent shall not be less than one and one-fourth (1 1/4)
inches in diameter and shall not exceed the maximum length permitted for a main
vent.
Section 22. Vent Pipes Grades
and Connections.
(1) A vent or branch vent
pipe shall be free from drops or sags and be so graded and connected as to drip
back to the soil or waste pipe by gravity.
(2) If a vent pipe connects to a horizontal
soil or waste pipe, the vent branch shall be taken off above the center line of
the pipe, and the vent pipe shall rise vertically at an angle of forty-five
(45) degrees to the vertical, to a point six (6) inches above the fixture it is
venting before offsetting horizontally or connecting to the branch, main,
waste, soil or vent.
Section
23. Vents Not Required; Backwater Traps, Subsoil Catch Basin, and
Basement Floor Drains.
(1) A vent shall not be
required on a backwater trap, subsoil catch basin trap, or a basement floor
drain if the basement floor drain branches into the house drain so that
measuring along the flow line from the center of the stack, the floor drain
shall not be closer than five (5) feet of the stack, nor farther than twenty
(20) feet.
(2) A basement floor
drain shall not require an individual vent if it branches into the house drain
so that measuring along the flow line from the center of the house drain the
basement floor drain shall not be farther than ten (10) feet from the house
drain.
Section 24.
Permissible Common Vent Conditions.
(1) A
common vent or a common soil and waste pipe may be used if:
(a) Two (2) water closets, two (2)
lavatories, or two (2) fixtures of identical purpose are located on opposite
sides of a wall or partition; or
(b) Directly adjacent to each other within
the distance established in Section 2(11) of this administrative regulation
measured along the center line of the flow of water.
(2) Double sanitary tee or sanitary cross
shall not be used if a common vent or a common soil and waste pipe are
connected through a double fixture fitting for a water closet of less than 1.6
gallons per flush.
(3) A common
vent or common soil and waste pipe shall be vented in accordance with this
administrative regulation.
Section
25. Floor Drain Individual Vent Not Required.
(1) A manufacturer's floor drain shall not
require an individual vent if placed on a waste line for a floor drain within
the distance of ten (10) feet from the main waste line, or stack, if the base
of the stack is washed and the stack or stacks are undiminished through the
roof, or connected to a main vent stack.
(2) An open receptacle may be connected to a
floor drain line without being vented if the waste line discharges into a four
(4) inch master trap before entering the sanitary sewer system.
Section 26. Floor Drain at a
sewage and water treatment plant. A floor drain or service sink installed on
the operational floor level of a sewage and water treatment plant facility that
discharges into an open sump and is not connected directly to the sanitary
sewage system shall not be required to be trapped or vented.
Section 27. House Drain Material. A house
drain shall be:
(1) Extra heavy cast
iron;
(2) Service weight cast
iron;
(3) Brass;
(4) Type (K) or (L) copper;
(5) Lead;
(6) ABS or PVC plastic; or
(7) Duriron.
Section 28. Indirect Waste Connections.
(1) Waste pipe from a refrigerator drain or
other receptacle where food is stored or waste water from a water cooled
compressor shall connect indirectly with the house drain, soil, or waste
pipe.
(2) The drain shall be vented
to the outside air.
(3) The waste
pipe shall discharge into an open sink or another approved open receptacle that
is properly supplied with water in accordance with this administrative
regulation.
(4) The connection
shall not be located in an inaccessible or unventilated area.
Section 29. Bar and Soda Fountain
Wastes.
(1)
(a) A bar and soda fountain waste, sink, or
receptacle shall have a one and one-half (1 1/2) inch P trap and
branches.
(b) The main shall not be
less than two (2) inches.
(c) The
fresh air pipe shall not be less than one and one-half (1 1/2)
inches.
(d) The main waste line
shall discharge into a properly vented and trapped open receptacle inside or
outside a building.
(2)
A floor receptor or floor sink may be installed flush with the finished floor
if it has a full grate with an attached funnel to receive indirect
waste.
(3) A floor receptor or
floor sink installed specifically for the indirect wastes from a tilting
braising pan, tilting kettle, or other similar equipment may be installed level
with or slightly recessed in the floor if the receptor is equipped with a
proper strainer and receives no other indirect waste.
Section 30. Open Receptacles. Soil or waste
piping receiving the discharge from an open receptacle shall be at least six
(6) inches above the surface of the ground if it discharges into a septic
system.
Section 31. Refrigerator
and Condensate Wastes.
(1) A refrigerator or
condensate discharge waste pipe shall not be less than:
(a) One and one-half (1 1/2) inches for one
(1) to three (3) openings; and
(b)
Two (2) inches for four (4) to eight (8) openings.
(2) Each opening shall be trapped.
(3) The waste piping shall be equipped with
sufficient cleanouts to allow for thorough cleaning.
Section 32. Overflow Pipes.
(1) Waste from a water supply tank or exhaust
from a water lift shall not be directly connected to a house drain, soil, or
waste pipe.
(2) The waste pipe
shall discharge upon a roof or into a trapped open receptacle.
Section 33. Acid and Chemical
Wastes.
(1) A corrosive liquid shall not be
permitted to discharge into the soil, waste, or sewer system unless otherwise
permitted by this administrative regulation.
(2) The waste shall be thoroughly diluted or
neutralized by passing through a properly constructed and acceptable dilution
or neutralizing pit before entering the house sewer.
Section 34. Laboratory Waste Piping.
(1) Laboratory waste piping shall be sized in
accordance with this administrative regulation and each fixture shall be
individually trapped.
(2) A
continuous waste and vent pipe system may be used if the waste discharges into
a vented dilution pit outside the building with a vent equal to the size of the
drain. The vent may be eliminated if the pit has a ventilated cover.
(3) If a dilution pit is not required and is
not used, the fixtures shall be individually vented.
(4) If construction conditions permit, the
base of the stack of the continuous waste and vent system shall be washed by
the last fixture opening, and continue full size independently through the
roof.
(5) A fixture branch
exceeding more than the distance established in the table in Section 2(11) of
this administrative regulation from the main shall be revented, and the
distance shall be measured from the center of the main to the center of the
vertical riser.
(6)
(a) A fixture connection shall rise
vertically to a height so that the trap shall not be lower than twelve (12)
inches from the bottom of the sink.
(b) Two (2) or more sinks may be connected
into a common waste before entering the riser of the continuous waste and vent
system, if the fixtures are not more than five (5) feet from the center of one
(1) fixture to the center of the other.
Section 35. Acid Waste Piping.
(1) Underground piping for acid wastes shall
be:
(a) Extra heavy salt glazed vitrified
pipe;
(b) Silicon iron;
(c) Lead;
(d) PE pipe and fittings produced and labeled
as ASTM D204;
(e) PP pipe produced
and labeled as ASTM D4101;
(f) PP
pipe and fittings produced and labeled as ASTM F1412;
(g) CPVC Chemical Waste Drainage Systems
meeting ASTM F2618; or
(h) Other
materials approved in
815 KAR
20:020, Section 4.
(2) Piping for acid wastes and vents above
ground shall be:
(a) Silicon iron;
(b) Lead;
(c) Borosilicate;
(d) PE pipe produced and labeled as ASTM
D120462T;
(e) PP pipe produced and
labeled as ASTM D410185;
(f)
Filament-wound reinforced thermosetting resin pipe produced and labeled as ASTM
D2996 (green or poly thread); or
(g)CPVC Chemical Waste Drainage Systems
meeting ASTM F2618.
Section 36. Special Vents. A flat vent may be
allowed if the design of the building prohibits the type of venting required by
this administrative regulation.
Section
37. Basement Floor Drains.
(1) A
basement floor drain shall be:
(a) Connected
to the house sewer;
(b) Properly
trapped and vented;
(c) Readily
accessible for cleaning; and
(d) Of
sufficient size to serve the purpose intended.
(2) If a drain is subject to back flow or
back pressure, the drain shall be equipped with a back water valve that
complies with Section 38 of this administrative regulation.
(3)
(a) A
basement floor drain shall not be connected to the house sewer and shall be
exempt from this section if, prior to the installation, the local health
department or sanitary sewage system board, plant, district, or treatment plant
owner notifies the division, in writing, that connection is detrimental to the
functioning of the sanitary sewer system or subsurface system.
(b) If the drain is not to be connected to
the house sewer, the installation shall also be exempt from the waste, trap,
and venting provisions of this code.
Section 38. Back Water Valves. A back water
valve shall be:
(1) Made of noncorrosive
material; and
(2) Constructed to
ensure a positive mechanical seal, except if discharging waste.
Section 39. Residential Laundry
Room Floor Drains. A two (2) inch floor drain with an individual waste and vent
may be installed in a residential laundry room.
STATUTORY AUTHORITY:
KRS
198B.040(10),
318.130