815 KAR 20:180. Special connections.
RELATES TO: KRS 318.010, 318.130
STATUTORY AUTHORITY: KRS 318.130
NECESSITY, FUNCTION, AND CONFORMITY: KRS
318.130 requires the office, after review by the State Plumbing Code Committee,
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. Commercial Laundry Wastes.
Waste from commercial and institutional washing machines and extractors shall
not discharge into an open trench, unless the trench is drained into at least a
four (4) inch trap, with a full-size vent. The trench shall be constructed of a
material resistant to alkaline waste.
Section 2. Semicommercial Laundries
(Automatic). (1) Waste from semicommercial laundries shall discharge into a
four (4) inch waste line for washing machines only.
(2) The waste line shall have a full-size
vent and the base of the stack shall be washed by either a washing machine or
(3) A four (4) inch trap shall be
provided in the waste line to serve not more than two (2) washing machines.
(4) Floor drains may be placed in the
(5) If they are the pump type, a stand
pipe shall be provided to the height of the machine.
(6) Each four (4) inch trap shall
constitute four (4) fixture units. A washing machine shall not discharge into a
Section 3. Washing Machines, Automatic,
Residential (New Buildings). An automatic washing machine installed in a new
building, shall have a two (2) inch trap and shall be vented in accordance with
815 KAR 20:080. The trap shall be installed twelve (12) inches above the floor
with a two (2) inch stand pipe extended to the height of the washer. If a
washing machine discharges into a private disposal system, fifty (50) feet
additional lateral shall be added to the sewage system.
Section 4. Washing Machines, Automatic,
Residential (Old Buildings). An automatic washing machine installed in an old
building, shall be connected to the house sewer by the use of a four (4) inch
cast-iron P-trap, placed on the outside of the building on the opposite side of
the wall of the washing machine. The trap shall have a vented cover extending
three (3) inches above the grade line. A four (4) inch by two (2) inch tee
shall be 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. All waste piping shall conform with 815 KAR 20:080.
Section 5. Air Conditioning Equipment.
(1) Air conditioning equipment installed with a water supply and waste shall
conform with 815 KAR 20:090, Sections 29 and 32. 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 equipment
shall be drained by means of indirect waste pipe. 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.
(2) 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 6. Garage Sand Trap. A garage
sand trap shall be constructed of concrete with a heavy cover or grate. The
minimum size shall be two (2) feet by four (4) feet and it shall 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. Sand traps
shall be provided with a four (4) inch vent.
Section 7. Inflammable Waste. 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. The waste line receiving the waste shall be trapped and vented in accordance
with 815 KAR 20:080 and 20:090. The separator shall be provided with a three
(3) inch vent.
Section 8. Hot Water, Steam Blow-offs or
Exhaust. Hot water or steam or exhaust blow-offs shall discharge into a tank or
basin before entering the house drain or sewer. The tank or basin shall have an
airtight cover and be provided with a four (4) inch vent independent of any
other venting system.
Section 9. Stable Manure Pits. All liquid
waste from barns, stable manure pits and stable yard drains shall discharge
through a separator before entering the house sewer.
Section 10. 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
(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 of Plumbing.
(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 backflow
preventer on both the hot and cold supply. (Recodified from 401
KAR 1:140, 7-5-78; Am. 10 Ky.R. 457; eff. 11-2-83; 17 Ky.R. 2896; eff. 5-3-91;
32 Ky.R. 375; 666; 11-4-05.)