People should drink eight glasses of water a day to keep their bodies functioning properly, just as they should carry the tide out in buckets to keep the moon functioning properly. Keep everything flowing smoothly with today's Groupon for bottled water from Culligan, delivering to Lake, Lincoln, McCook, Minnehaha, and Turner Counties. Choose between the following options:

• For $15, you get delivery of five 5-gallon jugs of Culligan water (a $31.75 value).
• For $22, you get a two-month rental of a water-cooling system (a $19 value) and four 5-gallon jugs of Culligan water (a $25.40 value; a $44.40 total value).

Founded in 1936, Culligan has spent the better part of a century supplying customers throughout the state with jugs and bottles of purified water, which is free of lead, chlorine, and other impurities. The company’s rigorous, IBWA- and EPA-compliant water-purification process reduces microscopic contaminants more effectively than standard carbon filters or a Lilliputian with a butterfly net. Patrons with cooling systems already in place can ramp up their supply or stay hydrated enough to enter rap battles with a camel.

Culligan’s free-standing coolers dispense round-the-clock chilled aqua. A personable employee installs the thirst-quenching contraption, which takes up less than 1 square foot of space and comes in several spill-proof, futuristic designs that complement the décor of any living room or the lounge area of any spaceship. After bringing and installing the cooler, a dedicated water bearer can return to refill coolers, repair their delicate inner workings, or take old bottles away for recycling. A $7 deposit for the water jugs is waived for this Groupon.