(a)
Potable water tanks shall be installed in a manner that will allow water to be filled with an easily accessible inlet.(b)
A potable water tank’s inlet and outlet shall be positioned so that they are protected from contaminants such as waste discharge, dust, oil, or grease.(c)
Nonpermanent food facilities shall be provided with a connection of a size and type that will prevent its use for any other service and shall be constructed so that backflow and other contamination of the water supply is prevented.
Source:
Section 114225, https://leginfo.legislature.ca.gov/faces/codes_displaySection.xhtml?lawCode=HSC§ionNum=114225..