I AM BACK. I finally got my barth running again. . I Have 2 questions as most of you know I have a 1975 Barth class C I only know of 2 mine and one in Fl. #1 is how big is my gas tank? #2 is how big is my holding tank? Thanks for all your help. Ryegal

Not sure of holding tank size. I never came close to it getting full before dumping. It is a combo black and grey water tank. I am guessing 40 gal. Gas tank is a 36 gal. tank and water 25 gal.

Glad to here you are up and running down the road again.

Try this:

Rectangle Tank

Total volume of a rectangular prism shaped tank is length times width times height. Therefore,
V(tank) = lwh

See: http://www.calculatorsoup.com/...onstruction/tank.php

quote:

Originally posted by Regal Blue:
Try this:

Rectangle Tank

Total volume of a rectangular prism shaped tank is length times width times height. Therefore,
V(tank) = lwh

Also

Volume in cu ft / 0.137 = volume in gallons

Volume in cu in / 231 = volume in gallons

(The metric system is so much easier… 1 liter = 1000 cu cm)