An apparatus for storage of a changeable volume of a contained liquid within an exterior liquid, the apparatus comprising:
- a flexible liquid separation media (105) configured as an atmospherically open enclosure within a media liquid flow barrier (210) as an upper portion and comprising a liquid separation media upper edge (205) of the media liquid flow barrier (210) and a lower portion (105L) of the flexible liquid separation media (105) to contain a changeable volume (220) of a contained liquid (115) within the flexible liquid separation media (105) as the flexible liquid separation media (105) fills from an empty condition to a full condition within an exterior liquid (110),
- an at least three of a vertical outer support column (120) for securely supporting the flexible liquid separation media (105) within the exterior liquid (110) while the contained liquid (115) is within the flexible liquid separation media (105),
- the at least three of a vertical outer support column (120) comprising a top end (125) with an upper end (130) of the at least three of a vertical outer support column (120) proximate to the top end (125),
- the at least three of a vertical outer support column (120) comprising a bottom end (135) with a lower end (140) of the at least three of a vertical outer support column (120) proximate to the bottom end (135),
- the at least three of a vertical outer support column (120) comprising a vertical float chamber (180) within the at least three of a vertical outer support column (120) and between the upper end (130) and the lower end (140),
- the at least three of a vertical outer support column (120) having a liquid separation media facing side (145) on which below the top end (125) of the at least three of a vertical outer support column (120) of at least one of the at least three of a vertical outer support column (120) has an affixed at least one support column coupler (160) coupled to an upper media support column connector (150) coupled to an upper affixment (235) below the liquid separation media upper edge (205) of the flexible liquid separation media (105),
- a liquid separation media support float (175) within the vertical float chamber (180) within the at least three of a vertical outer support column (120), and a lower separation media float coupler (185) coupled to the liquid separation media support float (175),
- the lower separation media float coupler (185) passing through a vertical slot (200) on the a liquid separation media facing side (145) of each of the at least three of a vertical outer support column (120) for coupling the liquid separation media support float (175) to a lower media coupler (230) affixed to the lower portion (105L) of the flexible liquid separation media (105) for the liquid separation media support float (175) to floatably anchor the lower portion (105L) of the flexible liquid separation media (105) to one of the at least three of a vertical outer support column (120),
- the liquid separation media support float (175) is configured to rise and fall within the vertical float chamber (180) for lowering and rising the lower media coupler (230) of the flexible liquid separation media (105) within the exterior liquid (110) commensurate with a changeable volume (220) of the contained liquid (115) within the flexible liquid separation media (105) as to mitigate current and swell effects on the lower portion (105L) of the flexible liquid separation media (105) and to mitigate unequal liquid forces of weight and pressure of the contained liquid (115) upon the flexible liquid separation media (105) and maintains the lower portion (105L) of the flexible liquid separation media (105) a consistent distance relative to the at least three of a vertical outer support column (120) so the lower portion (105L) sinks and rises without varying in horizontal distance from one of the at least three of a vertical outer support column (120) to which the lower portion (105L) is floatably anchored, and
- the lower portion (105L) of the flexible liquid separation media (105) sinks in the exterior liquid (110) as the changeable volume (220) of the contained liquid (115) increases within the flexible liquid separation media (105) and the lower portion (105L) of the flexible liquid separation media (105) rises in the exterior liquid (110) as the changeable volume (220) of the contained liquid (115) decreases within the flexible liquid separation media (105) and a surface (245) of the contained liquid (115) maintains a consistent elevation difference below the liquid separation media upper edge (205) of the flexible liquid separation media (105).