Drainage Maximum Fixture Units

Question 1

What are the max allowable fixture units for 1-1/4” drainage piping?

Vertical?

Horizontal?

Answer 1

V: 1

H: 1

Question 2

What are the max allowable fixture units for 1-1/2” drainage piping?

Vertical?

Horizontal?

Answer 2

V: 2

H: 1

Question 3

What are the max allowable fixture units for 2” drainage piping?

Vertical?

Horizontal?

Answer 3

V: 16

H: 8

Question 4

What are the max allowable fixture units for 3” drainage piping?

Vertical?

Horizontal?

Answer 4

V: 48

H: 35

Question 5

What are the max allowable fixture units for 4” drainage piping?

Vertical?

Horizontal?

Answer 5

V: 256

H: 216

Question 6

What are the max allowable fixture units for 5” drainage piping?

Vertical?

Horizontal?

Answer 6

V: 600

H: 428

Question 7

What are the max allowable fixture units for 6” drainage piping?

Vertical?

Horizontal?

Answer 7

V: 1380

H: 720

Question 8

What are the max allowable fixture units for 8” drainage piping?

Vertical?

Horizontal?

Answer 8

V: 3600

H: 2640

Question 9

What are the max allowable fixture units for 10” drainage piping?

Vertical?

Horizontal?

Answer 9

V: 5600

H: 4680

Question 10

What are the max allowable fixture units for 12” drainage piping?

Vertical?

Horizontal?

Answer 10

V: 8400

H: 8200