Looking for 3D advice

[Cyclopean]

We're attempting to model a rather large waterbag. It's shaped somewhat like a bell, with a narrow top, and a broad bottom (all circular). It's widest point is about six inches from the floor, and it narrows from there to the base. It's broadest diameter is approximately 14 feet, and it's top diameter is appr. 6-7 feet. We're going to begin measuring sometime this week, and I was hoping one of you might be able to tell me the best way to draw this, and which measurements we'd need in order to do that. Again, I have very little exp. with 3D, and ANY information would be useful.

Thanks,

Cy

[f700es]

We're attempting to model a rather large waterbag. It's shaped somewhat like a bell, with a narrow top, and a broad bottom (all circular). It's widest point is about six inches from the floor, and it narrows from there to the base. It's broadest diameter is approximately 14 feet, and it's top diameter is appr. 6-7 feet. We're going to begin measuring sometime this week, and I was hoping one of you might be able to tell me the best way to draw this, and which measurements we'd need in order to do that. Again, I have very little exp. with 3D, and ANY information would be useful.

Thanks,

Cy

Hello Cy, can you attach a scanned pic of it?

F7