Radioactive water is only found in one place on a server, in testing to see it if it can be made usefull, its container doesnt retain the contents in the machine, after you hit save. 

Thanks in advance for helping us out

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This is a new use case, never asked about previously.

Looking into how it works now, I found the plugin does allow players to buy jugs/bottles of water from a vending machine, with water intact, including radioactive water. The amount and type of water is saved and will be given to the player without issue, but the UI will not show the quantity or type of water the player will receive, due to limitations in Rust's UI and networking protocol (this information cannot even be sent to the player). The plugin also allows you to configure containers (such as jugs/bottles of water) as currency, but by design, there is no requirement that the container have any contents (you can sell an empty container), and in fact you can only sell an empty container, which was done out of precaution (e.g., selling a backpack would delete its contents).

It is possible for the plugin to solve both of these problems (UI limitation and selling a non-empty container), but I'm not very inclinded to do this work, as it seems like a niche use case. I suggest you explore alternative ways to monetize radioactive water, such as a custom shop plugin (many servers use them) or some other more immersive experience (e.g., some sort of water recycler station).

I pushed some experimental changes to the plugin's GitHub repository for you to test.
https://github.com/WheteThunger/CustomVendingSetup

To use, set "Enable liquid currency": true, in the config. Then, rather than displaying the jug of radioactive water, the vending machine will display the radioactive water itself, with the amount you had placed inside the jug. Players can then directly sell the water, without consuming their jugs.

I havent, i just got back home today, ive been out "Farming" but for real. I'll have some time tomorrow evening to spend with my server, il will def check it out. Thanks for reaching out.

Merged post

It works great, thank you so much. Not consuming the jug is a nice touch, thanks again.