Natural Chemistry Pro Series Liquid Cover - Gallon

Item #: 20711

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Same Day Delivery

Place your order before 2:00 PM and we'll drop it off on your doorstep today! Orders placed after 2:00 PM will be delivered the next day. Every delivery includes a free digital water analysis.

Same Day Pickup

Place your order before 2:00 PM and we'll have it ready for pick-up today. Orders placed after 2:00 PM will be ready the next day.


Sunplay - Ogden
216 N 700 W
Building 4C - Bay 5
Ogden, UT 84404
Store hours:
9am - 5pm, M-F

Las Vegas

Sunplay - Las Vegas
2950 E Sunset Rd
Las Vegas, NV 89120
Store hours:
10am - 6pm, M-F
10am -4pm, Weekends

Item Details

Natural Chemistry Pro Series Liquid Cover

Swimming pools lose energy in a variety of ways, but evaporation is by far the largest source of energy loss. Evaporating water requires a tremendous amount of energy. It only takes 1 BTU to raise 1 lb of water 1 degree fahrenheit, but each pound of water 80 degrees fahrenheit water that evaporates takes a whopping, 1,048 BTU of heat our of the pool (1 gallon = 8.33 pounds). Therefore, for every gallon of 80 degree fahrenheit pool water that is lost due to evaporation we lose 8,729 BTU of energy.

Pro Series Liquid Cover's advanced mono-layer technology offers you the ability to save water and money by dramatically decreasing evaporation and heat loss.


  • Liquid Solar Blanket
  • Forms invisible one molecule thick mono-layer on the pool surface
  • Surface tension keeps the cover in place
  • Can be used when swimmers are in the pool.
  • Reforms during swimming
  • Saves heat and water
  • NSF Certified to NSF ANSI standard 50

Directions for use:

  • Add 4 ounces of this product per 675 square feet of surface area, assuming an average pool depth of 4 feet (20,000 gallons) or more.


  • Skimmer application is preferred, however, Liquid Cover can be added directly to the pool water.
  • Circulation system must be running for either application.
  • For best results, feed small amounts multiple times per day with Natural Chemistry's Automatic Dosage Dispensor (86440). 

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