Typically, 1,000 pounds of Epsom salt is used per 250 gallons of water in a float tank. This ratio helps to create the desired buoyancy and sensory deprivation experience for floaters.
31.275
About 45 gal
The US military is recovering 1 gal of water from every 2 gal of gas used in a Hummer!
13 gal.
* 3.175088 litres * 0.83886 gal * 0.65859 gal(imperial)
Could be up to 300 gal.
293 gal.
250,099.2 pounds at 8.35 lbs/gal.
1/4 GAL
I believe it would be impossible to carry any water in a pile.
Well, cola is mostly water anyway - it may be a bit denser because of the sugar and other ingredients, but they'd probably weigh pretty much the same...