Item

Column 1

Fixture

Column 2

Minimum Size of Fixture outlet Pipe, in.

Column 3

Hydraulic Load, fixture units

1.

Autopsy table

1 ½

2

2.

Bathroom group

(a) with flush tank

6

(b) with direct flush valve

8

3.

Bathtub (with or without shower)

1 ½

1 ½

4.

Bath: foot, sitz or slab

1 ½

1 ½

5.

Bed pan washer

3

6

6.

Beer cabinet

1 ½

1 ½

7.

Bidet

1 ¼

1

8.

Chinese range

1 ½

3

9.

Clothes washer

(a) domestic

N/A

1 ½ with 2 in. trap

(b) commercial

N/A

2 with 2 in. trap

10.

Cup Sinks

1 ¼

½

11.

Dental unit or cuspidor

1 ¼

1

12.

Dishwasher

(a) domestic

1 ½

1 (no load if connected to garbage grinder or domestic sink)

(b) commercial type

2

3

13.

Drinking fountain

1 ¼

½

14.

Fish tank or tray

1 ½

1 ½

15.

floor drain

2

2 with 2 in. trap

3 with 3 in. trap

16.

Garbage grinder, commercial type

2

3

17.

Icebox

1 ¼

1

18.

Laundry tray

(a) single or double units or 2 single units with common trap

1 ½

1 ½

(b) 3 compartments

1 ½

2

19.

Lavatory

(a) barber or beauty parlor

1 ½

1 ½

(b) dental

1 ¼

1

(c) domestic type single, or 2 single with common trap

1 ¼

1 with 1 ¼ in. trap

1 ½ with 1 ½ in. trap

(d) multiple or industrial type

1 ½

3

20.

Macerating Toilet System

3/4

4

21.

Potato Peeler

2

3

22.

shower drain

(a) from 1 head

1 ½

1 ½

(b) from 2 or 3 heads

2

3

(c) from 4 to 6 heads

3

6

23.

Sink

(a) domestic and other small type with or without garbage grinders, single, double or 2 single with a common trap

1 ½

1 ½

(b) other sinks

1 ½

1 ½ with 1 ½ in. trap

2 with 2 in. trap

3 with 3 in. trap

24.

urinal

(a) pedestal, siphon jet or blowout type

2

4

(b) stall, washout type

2

2

(c) wall

(i) washout type

1 ½

1 ½

(ii) other types

2

3

25.

water closet

(a) with flush tank

3

4

(b) with direct flush

3

6