FIG. 1 is a top plan view of the bladder with tethered top and hose:
FIG. 2 is a bottom plan view thereof;
FIG. 3 is a top plan view of the tether shown separately for convenience of illustration;
FIG. 4 is side elevational view of the bladder, the other side being exactly the same and with the cap, tether, and hose removed for convenience of illustration.
FIG. 5 is a top plan view of the flask cap shown separately for convenience of illustration; and,
FIG. 6 is a side elevational view of the flask cap.