Twin Set position when filling tanks

[tecrec]

When you have to fill a Twin Set of Scuba Tanks (eg 2x12L), with the classic round bottom (not concave), with no plastic boots

in what position you let them to stand in the air compressor room during filling?
- Upright (how they stand vertical on its own ?)
- On its side (horizontal body position)
- It does not matter, any position is acceptable

 

[sealark]

It doesn't matter what position they are in.

 

[tstormdiver]

We typically lean ours upright agaist a wall or another cylinder due to whip length of the fill station.

 

[tecrec]

Thanks, much appreciated for your input.