Stored in a 33 gallon rubbermaid food save container with the float valve fed by kent ro unit with a brs auto shut off valve as the float is not meant to hold more than a few pounds of pressure. I have a 10 gallon tank as my ato tank under the sump which feeds my kalk stirrer. I top up the 10 gallon(well the wife does
) every 2-3 days. I can snap some pictures for you later.