Need holding tank sizes on 83 Bigfoot

[John Fitzgerald]

Hi all. Anyone with an early 80's 17 ft Bigfoot know what the grey and black holding tank sizes are. I can't find any sticker inside mine that lists the stats. I need to get an external portable waste tank.
Any help would be greatly appreciated.

John.

[Larry&Carrie]

Hi all. Anyone with an early 80's 17 ft Bigfoot know what the grey and black holding tank sizes are. I can't find any sticker inside mine that lists the stats. I need to get an external portable waste tank.
Any help would be greatly appreciated.

John.

If you can measure it, cube the demensions in inches, then divide by 231, that'll give you gallons. (231 cubic inches equal one gallon) Larry

[Roy in TO]

If you can measure it, cube the demensions in inches, then divide by 231, that'll give you gallons. (231 cubic inches equal one gallon) Larry

Interesting, that means that 3 x 45" pieces of 6" plastic water pipe placed between the frame rails will yield a little over 10 Gallons in capacity.