The 5-gallon packs were created to be used with a 5-gallon carboy (≈19 liters); this is probably the most common size of water jug in the United States. Other regions throughout the world use 22.7 liters.
Mixing with 5 gallons:
Mixing the 5-gallon sticks is the same (albeit a little more difficult) as mixing the 1-gallon or 2-liter sticks.
- Add minerals to the 5 gallon container into the empty water (distilled, reverse osmosis, denoted, etc).
- Mix the water using the TWW Mixing Stick attached to a typical power drill.
We recommend using a powered pump (we like the flojet) to hook up your espresso machine so you don't have to manually fill your espresso machine in use.