Minnesota Administrative Rules

4626.1190 BACKFLOW PREVENTION. 5-402.11

A.

Except as specified in items B, C, and D, a direct connection must not exist between the sewage system and a drain originating from equipment in which food, portable equipment, or utensils are placed._P1

B.

Item A does not apply to floor drains that originate in refrigerated spaces that are constructed as an integral part of the building.

C.

If allowed by chapter 4714, a warewashing machine may have a direct connection between its waste outlet and a floor drain when the machine is located within 5 feet (1.5 meters) of a trapped floor drain and the machine outlet is connected to the inlet side of a properly vented floor drain trap.

D.

If allowed by chapter 4714, a warewashing or culinary sink may have a direct connection.

Statutory Authority:

MS s 31.101; 31.11; 144.05; 144.07; 144.08; 144.12; 157.011

History:

23 SR 519; 40 SR 71; 43 SR 295

Published Electronically:

January 2, 2019