Current through Register Vol. 50, No. 6, December 1, 2023
RELATES TO:
KRS
318.010,
318.130
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 methods and materials that may be used in
Kentucky. This administrative regulation establishes requirements regarding
waste, other than sanitary wastes.
Section
1. Laundries.
(1) Commercial
Laundry Wastes. Waste from commercial and institutional washing machines and
extractors shall not discharge into an open trench, unless the trench is:
(a) Constructed of a material resistant to
alkaline waste; and
(b) Drained
into at least a four (4) inch trap, with a full-size vent.
(2) Semicommercial Laundries (Automatic).
(a) Waste from semicommercial washing
machines shall discharge into a four (4) inch waste line for washing machines
only.
(b) The waste line shall have
a full-size vent and the base of the stack shall be washed by either a washing
machine or starch sink.
(c) A four
(4) inch trap shall be provided in the waste line to serve not more than two
(2) washing machines.
(d) Floor
drains may be placed in the waste line if:
1.
The washing machines are the pump type; and
2. A stand pipe is placed for each washing
machine to at least two (2) inches above the flood level rim of the washing
machine.
(e) Each four
(4) inch trap shall constitute four (4) fixture units.
(f) A washing machine shall not discharge
into a trench.
Section
2. Washing Machines, Automatic, Residential.
(1) New Buildings.
(a) An automatic washing machine installed in
a new building shall:
1. Have a two (2) inch
trap; and
2. Be vented in
accordance with
815 KAR
20:080.
(b) The trap shall be installed twelve (12)
inches above the floor with a two (2) inch stand pipe extended to at least two
(2) inches above the flood level rim of the washing machine.
(2) Existing Buildings.
(a) An automatic washing machine installed in
an existing building shall be connected to the house sewer by a four (4) inch
P-trap. The trap shall:
1. Be placed on the
outside of the building on the opposite side of the wall of the washing
machine;
2. Have a vented cover
extending three (3) inches above the grade line; and
3. Have a four (4) inch by two (2) inch tee
installed in the inlet side of the trap with a two (2) inch waste pipe
extending into the building through the floor to the height of the washing
machine.
(b) All waste
piping shall conform with
815 KAR
20:080.
Section 3. Air Conditioning Equipment.
(1) Air conditioning equipment installed with
a water supply and waste shall conform with
815
KAR 20:090, Sections 28 and 31.
(2)
(a)
Evaporative cooler, air washer, air handling, or similar air conditioning
equipment shall not have any drain pipe directly connected to any soil, waste,
or vent pipe. The evaporative cooler, air washer, air handling, or similar air
conditioning equipment shall be drained by means of indirect waste
pipe.
(b) The indirect waste shall
discharge through an air gap or air break into an open floor sink, floor drain,
or other approved type receptor which is properly connected to the drainage
system, except that an air gap shall be required if the indirect waste pipe may
be under vacuum.
(3) The
condensate or waste pipe from an air conditioning unit shall be classified as a
plumbing fixture only if directly connected to the plumbing system.
Section 4. Garage Sand Trap. A
garage sand trap shall:
(1) Be constructed of
concrete with a heavy cover or grate;
(2) Be at least two (2) feet by four (4)
feet;
(3) Have sufficient depth so
that there is at least a ten (10) inch vertical distance between the bottom of
the outlet ell and the bottom of the trap; and
(4) Installed with a four (4) inch
vent.
Section 5.
Inflammable Waste.
(1) Liquid waste from
buildings using gasoline, benzine, naphtha, or other inflammable oils or
compounds shall discharge into a separator before it enters a sanitary
sewer.
(2) The waste line receiving
the waste shall be trapped and vented as established in
815 KAR 20:080
and
815
KAR 20:090.
(3) The separator shall be installed with a
three (3) inch vent.
Section
6. Hot Water, Steam Blowoffs or Exhaust. Before entering the house
drain or sewer, hot water or steam or exhaust blowoffs shall discharge into a
tank or basin with an airtight cover and a four (4) inch vent independent of
any other venting system.
Section
7. Stable Manure Pits. Before entering the house sewer, all liquid
waste from barns, stable manure pits, and stable yard drains shall discharge
through a separator.
Section 8.
Pedicure Chairs.
(1) A two (2) inch open
receptacle may receive the discharge from up to two (2) pedicure chairs. Three
(3) to six (6) chairs shall have a minimum of a three (3) inch open
receptacle.
(2) A branched tail
piece discharge for a pump-type pedicure chair may be used in an existing
location only after approval of the division.
(3) If the water inlet for a pedicure chair
is below the flood level rim or is equipped with a spray hose, it will be
treated as a high hazard and require a reduced pressure principle back-flow
preventer on both the hot and cold supply.
PC-14; 1 Ky.R.
488; eff. 3-12-1975; Recodified from 401 KAR 1:140, 7-5-1978; 10 Ky.R. 457;
eff. 11-2-1983; 17 Ky.R. 2896; eff. 5-3-1991; 32 Ky.R. 375; 666; 11-4-2005; 46
Ky.R. 1691; eff. 6-2-2020.
STATUTORY AUTHORITY:
KRS
198B.040(10),
318.130
