glass fuel sediment bowl

[Joe K]

Sound like disconnect at the carburetor supply and take a sample. You can throw it down on the pavement and see how fast it evaporates.

If you find water, then continue to sample until you don't. THEN dig out the "Christy Dry-Gas" or today's equivalent and add that to your gas tank.

Google AI:

Dry gas is an alcohol-based fuel additive used in automobiles to prevent water in your fuel tank from freezing and causing engine stalling. It works by making the water soluble in gasoline so it can safely pass through the fuel system and burn off during combustion. [1, 2, 3]

Dry Gas is not a bad thing to add with every fill - especially for an infrequently used relatively low compression engine like the Model A Ford. Your tank while sitting will tend to "condense" water vapor from the air which in time can create problems. Dry Gas deals with this.

It may affect rubber hoses or seals used in your gas supply, if you have them.

If your gas tank has been "sealed" with a flowable coating, the dry gas may soften that.

Most purchased gasoline comes automatically with a low level of dry/gas/alcohol/additive for stability in transport and storage.

Joe K