Holding tanks ???

[Cvmark]

I just bought a 1997 sierra 24fb travel trailer. I cannot figure out how many gallons my black and gray tanks are. Any help would be great. Especially on the black tank.

[donniedu]

Fill an empty tank until full. drain 5 gallons at a time until empty. that will be your answer. they can be anywhere from 20 to 50 gallons. but im betting on the smaller side.

[Cvmark]

That is a good idea. Thank you.

[BooBoo23]

Call the Sierra service department, Jessica Hazleton, 575-535-1520, with the VIN # and she should be able to give you the correct answer.

[Kimber45]

Manufacture web page have specs back that far?

any time i have looked up a blue book value of a camper on NADA or Kelly it usually gives all the weights and specs for the specific model and year.

[Cvmark]

Thank you, I will do that.

[Mr. Dan]

I have read here that tanks sometimes have their capacity molded into the plastic on the bottom. You might lower the bottom covering and look at the bottoms of tanks.