Text in force at CAR3R-8: from CAR3R-0, effective 15 May 1956. OCR text
(a) Each tank shall be provided with a drainabl< sump having a capacity of not less than 0.25 percent of the tank capacity or 4.> gallon, whichever js the greater. It shall be acceptable to dispense with the sump if the fuel system is provided with a sediment bow! permitting ground inspection. The sediment bow! shall also be accessible for drainage. The capacity of the sediment chamber shall not be less than 1 ounce per each 20 gallons of the fuel tank capacity.
(b) If a fuel tank sump is provided, the capacity specified in paragraph (a) of this section shall be effective with the airplane in the normal ground attitude and in all normal flight attitudes.| (c) If a separate sediment bowl is provided in lieu of a tank sump, the fuel tank outlet shall be so located that, when the airplane is in the normal ground attitude, water will drain from all portions of the tank to the sediment bowl.