I have an old canvas water bag. I spliced a new rope on it, as it didn't have one.. I filled it with water and it took about 8 hours to leak out.. Does anyone know how to make a canvas water bag hold water again!! Maybe a little longer than 8 hours...
I think it's supposed to leak out. That's how the evaporative cooling works. The air passing over the wet canvas evaporates the water and cools the contents of the bag and also cools the air before it passes through the radiator, to help cool the engine too.
Jeff is correct about the bags and our water was gone before 8 hours before we drank it. I think there is a difference of opinion about whether the water is for people or the car. If it was for the car then why the drip bag. It didn't taste good unless you were thirsty, which since we lived in Arizona was always the case.
I always thought canvas water bags were around long before radiators.
Not sure about the little white bags on the front bumper, but Lister bags have been around since about 1910 according to Olive Drab.
Ft. Riley, Kansas, in July was pretty dry, too, and the water was very welcome. This must have been the only exception to Col Custer's request to "not change anything until he returned" from the Little Big Horn patrol. They haven't.
I don't know whether the bags were originally intended for drinking water or not but I do know that my grandfather, who ranched sheep and cattle in Wyoming from the 20's through the mid 60's used to carry a canvas bag of drinking water when he was out tending his animals or working his alfalfa fields. Ma says that when she was a girl it was always a treat to ride out to see him and have a drink out of the bag. It was always so cool and refreshing.
They are supposed to leak. The army uses large canvas "Lister Bags" filled with water, with multiple little spigots mounted near the bottom,that hang from trees. The leaking water actually ends up cooling the water inside, giving you nice cold water to drink. The radiator bags use the same idea.
My grandfather used to wrap burlap around glass Clorox bottles and use them for water bottles on the farm. He'd attach the burlap with hog rings. You would splash a little water on the burlap when you took a drink and had cool water the next time.Noel
Canvas Specialties in Santa Fe Springs still makes the bags, last I checked. Don't have the url handy.
I found this Boyco in an antique store in Oroville last summer. As I was told, the burlap is for cooling via evaporation.