after receiving some email signaling tanks volumes not present in the software I changed the way you choose thanks. In order to have no limitations now you enter directly tank volume and max pressure.
Spanish support added.
Imperials units added (PSI, CuFt, feet).
The program is free for personal use you can share freely.
Next palnned step: CCR (rebreather) support.
Download at: http://pastodeco.antoniopastorelli.com/download.html
Your opinion is welcome for the evolution of the project!