Tanker truck tank cutaway.
https://s3-us-west-1.amazonaws.com/h...nk_cutaway.jpg
Previously:
https://www.homemadetools.net/forum/...281#post146162
https://www.homemadetools.net/forum/...244#post141921
https://www.homemadetools.net/forum/...147#post130325
https://www.homemadetools.net/forum/...247#post138544
https://www.homemadetools.net/forum/...209#post130545