Current through Register Vol. 50, No. 6, December 1, 2023
RELATES TO:
KRS
318.010,
318.015,
318.150,
318.200
NECESSITY, FUNCTION, AND CONFORMITY:
KRS
318.130 requires the department to promulgate
an administrative regulation establishing the Kentucky State Plumbing Code
regulating plumbing, including the kind, type, and quality of plumbing fixtures
to be used in the construction of plumbing systems. This administrative
regulation establishes the requirements for plumbing fixtures to be used in
Kentucky.
Section 1. Materials.
Receptacles used as water closets, urinals, or for the disposal of human
excreta, shall be of vitrified earthenware, hard natural stone, or cast-iron
with a light color porcelain enameled on the inside, except as established in
Section 4 of this administrative regulation.
Section 2. Installation.
(1) Plumbing fixtures shall be installed to
allow access for cleaning.
(2) All
pipes from fixtures shall be run to the wall.
(3) A trap or pipe shall not extend nearer to
the floor than twelve (12) inches except laundry trays or similar
fixtures.
Section 3.
Water Closet Bowls.
(1) A water closet bowl
shall be of one (1) piece construction and hold a sufficient quantity of water
when filled to the trap overflow to prevent fouling of its interior
surfaces.
(2) A water closet bowl
shall be provided with an integral flushing rim to flush the entire interior of
the bowl.
Section 4.
Plastic Water Closet Bowl and Tank.
(1) A
plastic water closet bowl and tank shall be constructed with a PP lining inside
the one (1) piece bowl and tank.
(2) The outer surface of the bowl shall be
constructed of PVC material.
(3)
The filler material between the lining and outer surface shall be made of
polyurethane foam.
(4) The bowl
shall have:
(a) A three (3) inch water seal;
and
(b) A two and one eighth (2
1/8) inch waste opening passage.
Section 5. Frost-proof Closet.
(1) A frost-proof water closet may be
installed only in a building that has at least a twelve (12) inch air break
between it and any building used for habitation or occupancy.
(2) The frost-proof water closet room shall:
(a) Be tightly enclosed and accessible from
the outside only;
(b) Have a
nonabsorbent floor;
(c) Have a soil
pipe between the trap and hopper of four (4) inches in diameter; and
(d) Have a four (4) inch vent.
Section 6. Floor and
Shower Drains.
(1) A floor drain or a shower
drain shall be considered a plumbing fixture and shall be provided with a
strainer.
(2) Shower drain pan
construction.
(a) A shower drain pan shall be
constructed to a minimum height of six (6) inches on all vertical
walls.
(b) A shower drain pan shall
not be required on a concrete floor below the outside grade level.
(c) A shower drain pan shall be constructed
of:
1. Sheet lead weighing not less than four
(4) pounds per square foot;
2.
Nonplasticized chlorinated polyethylene produced and labeled as ASTM D412 and
D1204, which shall be not less than four hundredths (0.040) inches
thick;
3. Nonplasticized PVC sheet
material produced and labeled as ASTM D1004, D412, D412 -06A, and D1790, which
shall be not less than four hundredths (0.040) inches thick; or
4. Other approved material as established in
815 KAR
20:020, Section 4.
(3) Fiberglass bathtubs, showers, tub
enclosures, and shower stalls.
(a) Fiberglass
bathtubs and tub enclosures shall be produced and labeled as ANSI
Z124.1.
(b) Acrylic-faced bathtubs
shall be produced and labeled as ASTM E84 - 08A or E162.
(c) Fiberglass shower stalls and shower
receptors shall be produced and labeled as ANSI Z124.2.
(4) Metamorphosed carbonate aggregate
polyester resinous martrix-marbleoid bathtubs, lavatories, and shower stalls.
(a) Metamorphosed carbonate aggregate
polyester resinous martrix-marbleoid bathtubs shall be produced and labeled as
ANSI Z124.1.
(b) Lavatories shall
be produced and labeled as ANSI Z124.3.
(c) Shower stalls shall be produced and
labeled as ANSI Z124.2.
Section 7. Fixture Strainers.
(1) A fixture, other than a water closet or a
pedestal urinal, shall be provided with a strainer.
(2) The outlet area of the strainer shall not
be less than the interior area of the trap.
Section 8. Fixture Overflow. The overflow
from a fixture shall be optional, but if used, the overflow shall be connected
to the inlet side of a trap and accessible for cleaning.
Section 9. Fixture Additions. A fixture added
to a plumbing system shall be installed to comply with all applicable sections
of the code.
Section 10. Defective
Fixtures. If a newly installed fixture is found to be defective by the
department or if an old fixture is found to be in an unusable condition, it
shall be repaired, replaced, or removed within thirty (30) days upon written
notice from the department.
Section
11. Conservation of Water.
(1)
Showers. A shower used for other than safety reasons shall be equipped with an
approved flow control device, which shall limit the total flow to a maximum of
two and one-half (2.5) gallons per minute per shower head.
(2) Lavatories.
(a) Public facilities (domestic hot water
only). Lavatories in restrooms of public facilities shall be equipped with an
outlet device, which shall limit the flow of domestic hot water to a maximum of
seventy five hundredths (0.75) gallons per minute.
(b) Non-public facilities (domestic hot and
cold water). Lavatory faucets other than those in restrooms of public
facilities) shall be equipped with a flow control device, which shall limit the
flow of domestic water to a maximum of two (2.0) gallons per minute.
(c)
3. Sink
faucets (domestic hot and cold water). Sink faucets shall be equipped with a
flow control device, which shall limit the flow of domestic water to a maximum
of two and one-half (2.5) gallons per minute.
(3) Water closets.
(a) Residential (private use) installations.
A water closet for private use in a single family dwelling, duplex, or
townhouse, condominium or apartment unit shall not exceed one and six-tenths
(1.6) gallons per flush.
(b)
Commercial (public use) installations. A water closet for public use, including
a commercial building, shall not exceed three and one-half (3.5) gallons per
flush.
(4) Urinals. A
urinal shall not exceed one (1.0) gallon per flush.
(5)
(a) The
provisions of this section shall apply to new construction, renovation, or
replacement in an existing structure.
(b) Upon compliance with the requirements of
this section, the department shall permit the installation of a tank type water
closet equipped with devices found by the inspector to meet applicable
specifications in water closets having a tank capacity in excess of three and
one-half (3 1/2) gallons (thirteen and three-tenths (13.3) liters).
(c) The department shall allow the use of a
standard flush water closet and a urinal that does not meet the specific
specifications if the configuration of the building drainage system requires a
greater quantity of water to adequately flush the system, or if the owner
requests the use of antique fixtures that would not be equipped for reduced
flow.
Section
12. Specifications.
(1) Copies of
ANSI specifications identified in this administrative regulation may be
obtained, subject to applicable copyright law, by writing the American National
Standards Institute, 1430 Broadway, New York, New York 10018.
(2) Copies of ASTM specifications identified
in this administrative regulation may be obtained, subject to applicable
copyright law, by writing the American Society for Testing Materials, 1916 Race
Street, Philadelphia, Pennsylvania 19103.
PC-7-9; 1 Ky.R.
483; eff. 3-12-1975; 2 Ky.R. 455; eff. 4-14-1976; 3 Ky.R. 448; eff. 1-5-1977;
Recodified from 401 KAR 1:040, 7-5-1978; 8 Ky.R. 361; 769; eff. 1-6-1982; 9
Ky.R. 46; eff. 8-11-1982; 833; eff. 2-2-1983; 1237; eff. 6-1-1983; 10 Ky.R.
453; eff. 11-2-83; 11 Ky.R. 73; eff. 8-7-1984; 13 Ky.R. 785; eff. 11-11-1986;
1940; eff. 6-9-1987; 16 Ky.R. 1270; eff. 1-25-1990; 19 Ky.R. 1002; 1387; eff.
12-8-1992; 20 Ky.R. 3117; eff. 7-7-1994; 21 Ky.R. 1391; eff. 1-9-1995; 2533;
eff. 6-1-1995; 23 Ky.R. 3975; eff. 6-25-1997; 32 Ky.R. 2365; 33 Ky.R. 406; eff.
9-1-2006; 35 Ky.R. 2588; 36 Ky.R. 85; eff. 7-29-2009; 37 Ky.R. 2759; eff.
8-5-2011; 41 Ky.R. 169; eff. 9-24-2014; 46 Ky.R. 1664, 2429; eff.
6-2-2020.
STATUTORY AUTHORITY:
KRS
198B.040(10),
318.130