// CODE SNIPPET
810.2 Sumps, Condensers, and Intercepting Tanks
JUMP TO FULL CODE CHAPTER
Sumps, condensers, or intercepting tanks that are constructed
of concrete shall have walls and bottom, not less than 4 inches
(102 mm) in thickness, and the inside shall be cement plastered
not less than 1/2 of an inch (12.7 mm) in thickness. Condensers
constructed of metal shall be not less than No. 12 U.S.
standard gauge (0.109 inch) (2.77 mm), and such metal condensers
shall be protected from external corrosion by an
approved bituminous coating.