18-29-1003.3.2 Food waste disposers restriction.

   No grease interceptor or separator shall receive the discharge from a food waste disposer.

(Amend Coun. J. 7-29-15, p. 3537, § 4; Amend Coun. J. 10-14-21, p. 37722, Art. X, § 3)

18-29-1003.3.3 Additives to grease interceptors.

   Systems that dispense interceptor performance additives to grease interceptors shall not be installed except where such systems dispense microbes for the enhancement of aerobic bioremediation of grease and other organic materials, or for inhibiting growth of pathogenic organisms by anaerobic methods. Such microbial dispensing systems shall be installed only where the grease interceptor manufacturer's instructions allow such systems and the systems conform to ASME A112.14.6. Systems that discharge emulsifiers, chemicals or enzymes to grease interceptors shall be prohibited.

(Amend Coun. J. 7-29-15, p. 3537, § 4; Amend Coun. J. 10-14-21, p. 37722, Art. X, § 3)

18-29-1003.3.4 Reserved.

Editor's note – Coun. J. 10-14-21, p. 37722, Art. X, § 3, repealed § 18-29-1003.3.4, which pertained to construction materials.

18-29-1003.3.5 Hydromechanical grease interceptors; fats, oils and greases disposal systems and automatic grease removal devices.

   Hydromechanical grease interceptors; fats, oils and greases disposal systems and automatic grease removal devices shall be sized in accordance with ASME A112.14.3, ASME A112.14.4, ASME A112.14.6, CSA B481.3 or PDI G101. Hydromechanical grease interceptors; fats, oils and greases disposal systems and automatic grease removal devices shall be installed in accordance with the manufacturer's instructions. Where manufacturer's instructions are not provided, hydromechanical grease interceptors; fats, oils and greases disposal systems and automatic grease removal devices shall be installed in compliance with ASME A112.14.3, ASME A112.14.4, ASME A112.14.6, CSA B481.3 or PDI G101.

(Amend Coun. J. 11-8-12, p. 38872, § 374; Amend Coun. J. 10-14-21, p. 37722, Art. X, § 3)

18-29-1003.3.5.1 Grease interceptor capacity.

   Grease interceptors shall have the grease retention capacity indicated in Table 18-29-1003.3.5.1 for the flow-through rates indicated.

Table 18-29-1003.3.5.1
Capacity of Grease Interceptors a

Total Flow-Through Rating (gpm)	Grease Retention Capacity (pounds)
4	8
6	12
7	14
9	18
10	20
12	24
14	28
15	30
18	36
20	40
25	50
35	70
50	100
75	150
100	200

 

For SI: 1 gpm = 3.785 L/m, 1 pound = 0.454 kg.

a.   For total flow-through ratings greater than 100 (gpm), double the flow-through rating to determine the grease retention capacity in pounds.

(Amend Coun. J. 10-14-21, p. 37722, Art. X, § 3)

18-29-1003.3.5.2 Rate of flow controls.

   Grease interceptors shall be equipped with devices to control the rate of water flow so that the water flow does not exceed the rated flow. The flow-control device shall be vented and terminate not less than 6 inches (150 mm) above the flood rim level or installed in accordance with the manufacturer's instructions.

(Amend Coun. J. 10-14-21, p. 37722, Art. X, § 3)