Most suitable water bottle for camping?

I find out a US army collapsible canteen

at my deposit.

I think it has potentialities for

bushcraft mode camping. :)

olive-drab.com :

The hot, wet, jungle conditions in the Vietnam War

generated requirements for new equipment.

One example was the five quart canteen

that was produced starting in 1968.

It served as a large capacity canteen

or could be inflated with air for use as a flotation device.

Its five quart(=4.73 liter) capacity is most

suitable for my one night's lodging.

But, I want to add a tap(faucet) to it.

So I make a tap.

Camelbak's hydrolock part

and urethane pipe.

The tap thrusts in the nozzle

of canteeen.

The bottle hangs up upside down,

it is convenient to pour water.

I have read 'Guns, Germs, and Steel(1998)'

written by Jared Diamond.

In the process of making tools,

I experience the human progress personally.