ProVent Systems Inc.
1355 Capital Circle
Lawrenceville, GA, 30043

Tel: 800-262-5355
Fax: 770-339-1784

Chart 4
Maximum Loading by Building Drain

Chart 4: Maximum Loading by Building Drain
  Fixture Units
Drain Size

Slope: 2%
(1/4” per foot)

Slope 1%
(1/8” per foot)

3"

42 36

4"

216 180

5"

350 280

6"

850 680
8" 2700 2160
10" 3900 3120
12" 5800 4640

 

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