COMMERCIAL GRADE DRUM LINER ( 1 )
SUPER BIG ! GREAT KEEPING THINGS DRY, CAN BE CUT TO KEEP FEET DRY,TETHERING, WATER STILL, STORAGE,COLLECTING AND STORAGE, WATER CONTAINMENT, PANCHO / WEATHER SHIELD, PREVENT HYPOTHERMIA / HEAT RETENTION, SHELTER, HOLD AIR FOR CUSHION OR FLOATATION, PILLOW / MATRESS WHEN FILLED WITH ITEMS OR DEBRIS, MAKESHIFT NET WHEN POCKED HOLES . BRAIDED STRIPS FOR ROPE, STRETCH SMALL PEICE FOR DENTAL FLOSS, CUT INTO SHEET FOR SHELTER ROOF AND MORE.
More Solar still info at: https://en.wikipedia.org/wiki/Solar_still