Figure 1 - Combination Waste and Vent System
NOTE: A combination waste and vent system is considered an alternate designed plumbing system and requires special approval of the plans and specifications, etc., by the state health officer prior to construction. Refer to the provisions contained in Chapter 12 of this code for any alternate designed plumbing system.
Figure 2 - Distances Permitted in a Combination Waste and Vent System
NOTE: A combination waste and vent system is considered an alternate designed plumbing system and requires special approval of the plans and specifications, etc., by the state health officer prior to construction. Refer to the provisions contained in Chapter 12 of this code for any alternate designed plumbing system.
Figure 3 - Bathtub and Chemical Mixing Tank Illustrations
Figure 4 - Access to Built-In Water Heater
Figure 5 - Examples of Back Siphon Backflow Protection
Figure 6 - Examples of Proper and Improper Backflow Protection
Figure 7 - Typical Sewer Manhole
Figure 8 - Floor Drain Trap Primer Detail
Alternate Grease Trap Sizing Formula | ||||||||
Number of Meals Per Peak Hour1 | x | Waste Flow Rate2 | x | Retention Time3 | x | Storage Factor4 | = | Interceptor Size (liquid Capacity) |
1. Meals Served at Peak Hour | ||||||||
2. Waste Flow Rate | ||||||||
a. With dishwashing machine | 6 gallon (22.7 L) flow | |||||||
b. Without dishwashing machine | 5 gallon (18.9 L) flow | |||||||
c. Single service kitchen | 2 gallon (7.6L) flow | |||||||
d. Food waste disposer | 1 gallon (3.8L) flow | |||||||
3. Retention Times | ||||||||
Commercial kitchen waste dishwasher | 2.5 hours | |||||||
Single service kitchen single serving | 1.5 hours | |||||||
4. Storage Factors | ||||||||
Fully equipped commercial kitchen | 8 hour operation: 1.0 | |||||||
16 hour operation: 2.0 | ||||||||
24 hour operation: 3.0 | ||||||||
Single Service Kitchen | 1.5 |
Figure 9 - Alternate Grease Trap Sizing Formula
Grease Trap Minimum Capacity WITHOUT Garbage Grinder | |||||
Retail Food | Institutions | Grease Trap Size (gallons) | Retail Food | Institutions | Grease Trap Size (gallons) |
Usable Square Footage (ft2)1 | Estimated People or Meals Served2 | Usable Square Footage (ft2)1 | Estimated People or Meals Served2 | ||
Less than 1,001 | Up to 50 | 125 | 10,401-10,600 | 521-530 | 1,325 |
1,001-1,200 | 51-60 | 150 | 10,601-10,800 | 531-540 | 1,350 |
1,201-1,400 | 61-70 | 175 | 10,801-11,000 | 541-550 | 1,375 |
1,401-1,600 | 71-80 | 200 | 11,001-11,200 | 551-560 | 1,400 |
1,601-1,800 | 81-90 | 225 | 11,201-11,400 | 561-570 | 1,425 |
1,801-2,000 | 91-100 | 250 | 11,401-11,600 | 571-580 | 1,450 |
2,001-2,200 | 101-110 | 275 | 11,601-11,800 | 581-590 | 1,475 |
2,201-2,400 | 111-120 | 300 | 11,801-12,000 | 591-600 | 1,500 |
2,401-2,600 | 121-130 | 325 | 12,001-12,200 | 601-610 | 1,525 |
2,601-2,800 | 131-140 | 350 | 12,201-12,400 | 611-620 | 1,550 |
2,801-3,000 | 141-150 | 375 | 12,401-12,600 | 621-630 | 1,575 |
3,001-3,200 | 151-160 | 400 | 12,601-12,800 | 631-640 | 1,600 |
3,201-3,400 | 161-170 | 425 | 12,801-13,000 | 641-650 | 1,625 |
3,401-3,600 | 171-180 | 450 | 13,001-13,200 | 651-660 | 1,650 |
3,601-3,800 | 181-190 | 475 | 13,201-13,400 | 661-670 | 1,675 |
3,801-4,000 | 191-200 | 500 | 13,401-13,600 | 671-680 | 1,700 |
4,001-4,200 | 201-210 | 525 | 13,601-13,800 | 681-690 | 1,725 |
4,201-4,400 | 211-220 | 550 | 13,801-14,000 | 691-700 | 1,750 |
4,401-4,600 | 221-230 | 575 | 14,001-14,200 | 701-710 | 1,775 |
4,601-4,800 | 231-240 | 600 | 14,201-14,400 | 711-720 | 1,800 |
4,801-5,000 | 241-250 | 625 | 14,401-14,600 | 721-730 | 1,825 |
5,001-5,200 | 251-260 | 650 | 14,601-14,800 | 731-740 | 1,850 |
5,201-5,400 | 261-270 | 675 | 14,801-15,000 | 741-750 | 1,875 |
5,401-5,600 | 271-280 | 700 | 15,001-15,200 | 751-760 | 1,900 |
5,601-5,800 | 281-290 | 725 | 15,201-15,400 | 761-770 | 1,925 |
5,801-6,000 | 291-300 | 750 | 15,401-15,600 | 771-780 | 1,950 |
6,001-6,200 | 301-310 | 775 | 15,601-15,800 | 781-790 | 1,975 |
6,201-6,400 | 311-320 | 800 | 15,801-16,000 | 791-800 | 2,000 |
6,401-6,600 | 321-330 | 825 | 16,001-16,200 | 801-810 | 2,025 |
6,601-6,800 | 331-340 | 850 | 16,201-16,400 | 811-820 | 2,050 |
6,801-7,000 | 341-350 | 875 | 16,401-16,600 | 821-830 | 2,075 |
7,001-7,200 | 351-360 | 900 | 16,601-16,800 | 831-840 | 2,100 |
7,201-7,400 | 361-370 | 925 | 16,801-17,000 | 841-850 | 2,125 |
7,401-7,600 | 371-380 | 950 | 17,001-17,200 | 851-860 | 2,150 |
7,601-7,800 | 381-390 | 975 | 17,201-17,400 | 861-870 | 2,175 |
7,801-8,000 | 391-400 | 1,000 | 17,401-17,600 | 871-880 | 2,200 |
8,001-8,200 | 401-410 | 1,025 | 17,601-17,800 | 881-890 | 2,225 |
8,201-8,400 | 411-420 | 1,050 | 17,801-18,000 | 891-900 | 2,250 |
8,401-8,600 | 421-430 | 1,075 | 18,001-18,200 | 901-910 | 2,275 |
8,601-8,800 | 431-440 | 1,100 | 18,201-18,400 | 911-920 | 2,300 |
8,801-9,000 | 441-450 | 1,125 | 18,401-18,600 | 921-930 | 2,325 |
9,001-9,200 | 451-460 | 1,150 | 18,601-18,800 | 931-940 | 2,350 |
9,201-9,400 | 461-470 | 1,175 | 18,801-19,000 | 941-950 | 2,375 |
9,401-9,600 | 471-480 | 1,200 | 19,001-19,200 | 951-960 | 2,400 |
9,601-9,800 | 481-490 | 1,225 | 19,201-19,400 | 961-970 | 2,425 |
9,801-10,000 | 491-500 | 1,250 | 19,401-19,600 | 971-980 | 2,450 |
10,001-10,200 | 501-510 | 1,275 | 19,601-19,800 | 981-990 | 2,475 |
10,201-10,400 | 511-520 | 1,300 | 19,801-20,000 | 991-1,000 | 2,500 |
1 Retail establishments expected to serve more meals than estimated by usable sq ft shall install the larger size grease trap.
2 Estimated # of people or meals served is the # of persons or meals served during the largest meal period.
Figure 10 - Grease Trap Sizing Chart (Without Garbage Grinder)
Grease Trap Minimum Capacity WITH Garbage Grinder | |||||
Retail Food | Institutions | Grease Trap Size (gallons) | Retail Food | Institutions | Grease Trap Size (gallons) |
Usable Square Footage (ft2)1 | Estimated People or Meals Served2 | Usable Square Footage (ft2)1 | Estimated People or Meals Served2 | ||
Less than 1,001 | Up to 50 | 500 | 10,401-10,600 | 521-530 | 1,700 |
1,001-1,200 | 51-60 | 525 | 10,601-10,800 | 531-540 | 1,725 |
1,201-1,400 | 61-70 | 550 | 10,801-11,000 | 541-550 | 1,750 |
1,401-1,600 | 71-80 | 575 | 11,001-11,200 | 551-560 | 1,775 |
1,601-1,800 | 81-90 | 600 | 11,201-11,400 | 561-570 | 1,800 |
1,801-2,000 | 91-100 | 625 | 11,401-11,600 | 571-580 | 1,825 |
2,001-2,200 | 101-110 | 650 | 11,601-11,800 | 581-590 | 1,850 |
2,201-2,400 | 111-120 | 675 | 11,801-12,000 | 591-600 | 1,875 |
2,401-2,600 | 121-130 | 700 | 12,001-12,200 | 601-610 | 1,900 |
2,601-2,800 | 131-140 | 725 | 12,201-12,400 | 611-620 | 1,925 |
2,801-3,000 | 141-150 | 750 | 12,401-12,600 | 621-630 | 1,950 |
3,001-3,200 | 151-160 | 775 | 12,601-12,800 | 631-640 | 1,975 |
3,201-3,400 | 161-170 | 800 | 12,801-13,000 | 641-650 | 2,000 |
3,401-3,600 | 171-180 | 825 | 13,001-13,200 | 651-660 | 2,025 |
3,601-3,800 | 181-190 | 850 | 13,201-13,400 | 661-670 | 2,050 |
3,801-4,000 | 191-200 | 875 | 13,401-13,600 | 671-680 | 2,075 |
4,001-4,200 | 201-210 | 900 | 13,601-13,800 | 681-690 | 2,100 |
4,201-4,400 | 211-220 | 925 | 13,801-14,000 | 691-700 | 2,125 |
4,401-4,600 | 221-230 | 950 | 14,001-14,200 | 701-710 | 2,150 |
4,601-4,800 | 231-240 | 975 | 14,201-14,400 | 711-720 | 2,175 |
4,801-5,000 | 241-250 | 1,000 | 14,401-14,600 | 721-730 | 2,200 |
5,001-5,200 | 251-260 | 1,025 | 14,601-14,800 | 731-740 | 2,225 |
5,201-5,400 | 261-270 | 1,050 | 14,801-15,000 | 741-750 | 2,250 |
5,401-5,600 | 271-280 | 1,075 | 15,001-15,200 | 751-760 | 2,275 |
5,601-5,800 | 281-290 | 1,100 | 15,201-15,400 | 761-770 | 2,300 |
5,801-6,000 | 291-300 | 1,125 | 15,401-15,600 | 771-780 | 2,325 |
6,001-6,200 | 301-310 | 1,150 | 15,601-15,800 | 781-790 | 2,350 |
6,201-6,400 | 311-320 | 1,175 | 15,801-16,000 | 791-800 | 2,375 |
6,401-6,600 | 321-330 | 1,200 | 16,001-16,200 | 801-810 | 2,400 |
6,601-6,800 | 331-340 | 1,225 | 16,201-16,400 | 811-820 | 2,425 |
6,801-7,000 | 341-350 | 1,250 | 16,401-16,600 | 821-830 | 2,450 |
7,001-7,200 | 351-360 | 1,275 | 16,601-16,800 | 831-840 | 2,475 |
7,201-7,400 | 361-370 | 1,300 | 16,801-17,000 | 841-850 | 2,500 |
7,401-7,600 | 371-380 | 1,325 | 17,001-17,200 | 851-860 | 2,525 |
7,601-7,800 | 381-390 | 1,350 | 17,201-17,400 | 861-870 | 2,550 |
7,801-8,000 | 391-400 | 1,375 | 17,401-17,600 | 871-880 | 2,575 |
8,001-8,200 | 401-410 | 1,400 | 17,601-17,800 | 881-890 | 2,600 |
8,201-8,400 | 411-420 | 1,425 | 17,801-18,000 | 891-900 | 2,625 |
8,401-8,600 | 421-430 | 1,450 | 18,001-18,200 | 901-910 | 2,650 |
8,601-8,800 | 431-440 | 1,475 | 18,201-18,400 | 911-920 | 2,675 |
8,801-9,000 | 441-450 | 1,500 | 18,401-18,600 | 921-930 | 2,700 |
9,001-9,200 | 451-460 | 1,525 | 18,601-18,800 | 931-940 | 2,725 |
9,201-9,400 | 461-470 | 1,550 | 18,801-19,000 | 941-950 | 2,750 |
9,401-9,600 | 471-480 | 1,575 | 19,001-19,200 | 951-960 | 2,775 |
9,601-9,800 | 481-490 | 1,600 | 19,201-19,400 | 961-970 | 2,800 |
9,801-10,000 | 491-500 | 1,625 | 19,401-19,600 | 971-980 | 2,825 |
10,001-10,200 | 501-510 | 1,650 | 19,601-19,800 | 981-990 | 2,850 |
10,201-10,400 | 511-520 | 1,675 | 19,801-20,000 | 991-1,000 | 2,875 |
Figure 11 - Grease Trap Sizing Chart (With Garbage Grinder)
La. Admin. Code tit. 51, § XIV-1807