9 Best Liquid Pool Covers in 2021 – Reviews & Top Picks

Last Updated: June 16, 2021

If you’re like most pool house owners, that sustaining your pool at a snug temperature is a continuing battle towards the weather. To fight dropping temps and decrease water ranges, you probably place a pool cowl or photo voltaic blanket on prime of your pool every night time.

But have you ever heard about liquid pool covers? Instead of combating a heavy, messy pool cowl, you may pour an answer into your pool that’s practically as efficient. Liquid pool covers cut back evaporation, which conserves your pool’s temperature.

If you’re unsure which product to strive in your pool, we’ve bought you lined. We’ve listed the 9 best liquid pool covers, ranked them from our prime choose on down, and supplied you with useful opinions, together with fast-reference pros and cons lists. Be certain to take a look at our purchaser’s information for extra helpful buying suggestions.

A Quick Comparison of Our Favorites

The 9 Best Liquid Pool Covers – Reviews 2021

1. Natural Chemistry 7100 Cover Free Liquid Pool Cover — Best Overall

Natural Chemistry


Our advice for the very best total product goes to Natural Chemistry Cover Free liquid pool cover. You’ll have the ability to save water and cash with this product’s superior mono-layer know-how, which creates an invisible barrier.

We discovered many examples to help Natural Chemistry’s claims that it decreases water evaporation by as much as 85% and minimizes warmth loss by as a lot as 70%. This liquid pool cowl conserves water and heating vitality with its wonderful floor pressure, which helps it stay in place or reform throughout swimming.

This product is pH is impartial and protected to make use of. Since it’s not irritating or harmful, swimming could be completed proper after including it to your pool. The quantity of resolution you’ll want and the way rapidly you’ll use the 32-ounce container varies enormously on climate circumstances and the amount of water in your pool.


  • Advanced mono-layer know-how
  • 85% decreased water evaporation
  • 70% lowered warmth loss
  • Excellent floor pressure
  • Safe to make use of and pH impartial
  • Can swim instantly after utility


  • Weather circumstances have an effect on effectiveness
  • Unclear what number of days it lasts

2. Tropical Fish Liquid Solar Blanket — Best Value

Tropical Fish


We chosen Tropical Fish liquid solar blanket as the very best liquid pool cowl for the cash. At a funds-pleasant value, this product works nicely to enhance your pool’s temperature by lowering water evaporation by as much as 50%.

You can use this liquid photo voltaic blanket with confidence. Tropical Fish is biodegradable, environmentally pleasant, and non-poisonous. It’s protected for all swimmers and won’t hurt a pet that will drink from the pool floor.

The chemical steadiness, filtration system, and liner of your pool won’t be negatively affected after including this product. Tropical Fish passes by means of sand, cartridge, and DE pool filters with out creating an issue. You could discover an oily residue in your pool water floor if you happen to look carefully after utilizing this product.

The 310ml bottle comes in a nautical design. While chances are you’ll discover it charming, you’ll almost certainly have a tough time precisely measuring the required quantity.

3. LO-CHLOR Aqua Blanket — Premium Choice



Our premium selection goes to LO-CHLOR Aqua Blanket. Once you add this liquid pool cowl to your pool, you’ll solely understand it’s there by lessened evaporation and improved pool temperatures.

This product offers an invisible barricade. LO-CHLOR explains that its liquid pool cowl rests in your pool’s water floor on the minuscule depth of a single molecule. This extremely-skinny layer works successfully to decrease your pool’s fee of evaporation, which in flip, saves you cash and extends how usually it is advisable add chemical compounds.

It’s protected to make use of and is suitable with all filtration strategies and pool liners. However, it doesn’t state whether or not it’s non-poisonous, biodegradable, or environmentally pleasant. Also, in comparison with different merchandise on our listing, it has a barely larger value.


  • Lessens evaporation
  • Improves pool temperatures
  • Thin, undetectable layer of safety
  • Saves water and reduces chemical use
  • Compatible with all filtration strategies and pool liners
  • Safe to make use of


  • Higher in value than comparable merchandise
  • May not be non-poisonous, biodegradable, or environmentally pleasant

4 .Pool Basics 2706PB Liquid Solar Cover

Pool Basics


You’ll have the ability to prolong your swimming season if you happen to dwell in a cooler local weather with Pool Basics liquid solar cover. This product works successfully with all filtration programs, together with saltwater swimming pools. It’s protected to make use of to forestall your pool from shedding warmth by minimizing evaporation.

We discovered that this product works moderately nicely to preserve water, which in flip, retains your pool at a snug swimming temperature. You’ll use fewer pool chemical compounds, because the protecting layer supplied by this liquid photo voltaic cowl retains chemical compounds from breaking down and being misplaced to evaporation.

Compared to different merchandise on this listing, we discovered that this product is a bit larger in value. Also, chances are you’ll want so as to add to make use of this liquid photo voltaic cowl extra steadily than different merchandise to keep up its productiveness.

We couldn’t decide if it’s non-poisonous, biodegradable, or environmentally pleasant. Safety precautions must be taken with correct storage to maintain out of attain of kids and pets.


  • Extends swimming season by sustaining warmth
  • Minimizes evaporation of water and pool chemical compounds
  • Safe to make use of
  • Works with all filtration programs


  • May not be non-poisonous, biodegradable, or environmentally pleasant
  • Higher in value than comparable merchandise
  • May want so as to add product extra steadily than comparable merchandise

5. SunHeater SHS32 Solar Blanket Liquid



At a extra inexpensive value, SunHeater Solar Blanket Liquid reduces evaporation, which helps forestall warmth loss and chemical loss. It creates an invisible barrier that’s non-poisonous and protected to your complete household.

The 32-ounce bottle requires solely 4 ounces for each 20,000 gallons of water. It’s unclear how lengthy this product lasts. The bottle is packaged with a straightforward-to-pour opening and measurement markings. Unfortunately, the bottle is opaque, which impedes precisely utilizing the marks.

We discovered combined ranges of success with the SunHeater Solar Blanket Liquid, relying on location. Cooler areas appeared to realize higher pool water temperature will increase. In hotter, sunnier climates, it was not as efficient at lowering evaporation. Also, we discovered that it may not be suitable with DE filters.


  • Affordable
  • Reduces evaporation
  • Prevents warmth and chemical loss
  • Easy-to-pour opening
  • Works best in cooler places


  • Difficulty utilizing measurement marks
  • Not as efficient with evaporation discount in hotter climates
  • May not be efficient with DE filters

6. Natural Chemistry 20711 Pro Series Liquid Cover

Natural Chemistry Pro Series


For a extra inexpensive per ounce product from Natural Chemistry, contemplate their Pro Series Liquid Cover. This product comes in a gallon container, which lasts longer and requires much less frequent purchases than quart containers.

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We discovered that this liquid pool cowl carried out moderately nicely to preserve water. Natural Chemistry makes use of superior mono-layer know-how, which creates an invisible barrier to lower evaporation and cut back warmth loss.

This liquid pool cowl is formulated to keep up optimum floor pressure. After the floor is disturbed by exercise or wind, it reforms rapidly right into a uniform cowl.

This product is pH impartial and protected to make use of. We couldn’t decide if it’s suitable with all filtration programs. Also, it’s not listed as non-poisonous, biodegradable, or environmentally pleasant.


  • Affordable
  • Gallon container lasts longer
  • Advanced mono-layer know-how
  • Some water and warmth conservation
  • Optimal floor pressure
  • Safe to make use of and pH impartial


  • Unknown if suitable with all filtration programs
  • Not listed as non-poisonous, biodegradable, or environmentally pleasant

7. Ecosavr 99999 Solar Fish Liquid Pool Cover



You’ll have the ability to considerably preserve water loss from evaporation and cut back in a single day warmth loss in your pool by half with the Ecosavr Solar Fish liquid pool cover.

Unlike different merchandise, that are poured into your pool and should require agitation to arrange a protecting layer, Ecosavr is packaged in a fish-formed plastic pouch that’s dropped in its entirety into your pool. The fish pouch sinks to the underside, the place it slowly releases its contents over a interval of a month.

You’ll have to rigorously comply with the directions or watch the educational video to correctly put together this product. We discovered that it really works reasonably nicely to extend pool temperature. The liquid pool cowl depends on water strain to be launched, which may range between swimming pools.

While Ecosavr is inexpensive and appears protected to make use of, we couldn’t decide the way it will have an effect on your pool chemical compounds, filtration system, or whether or not it’s eco-pleasant or non-poisonous.


  • 50% improved water conservation
  • Reduces in a single day warmth loss
  • Monthly utility
  • Affordable
  • Safe to make use of


  • Need to arrange product earlier than utility
  • Results range based mostly on dimension of pool
  • Unknown if suitable with pool chemical compounds or filtration programs
  • May not be eco-pleasant or non-poisonous

8. SeaKlear 1112000 Solar Shield Liquid Pool Cover



Using a novel, patented formulation, SeaKlear Solar Shield liquid pool cover works inside the first week of utility. It’s lengthy lasting and may stay efficient for a month in non-excessive climate circumstances.

SeaKlear claims that it could forestall as much as 1,500 gallons of water misplaced to evaporation every month. We discovered combined outcomes amongst pool house owners persistently utilizing this product. There have been many examples of it stopping warmth loss in a single day, however there have been simply as many disenchanted customers who didn’t discover any change.

SeaKlear appears to be protected to make use of. It will not be suitable with a DE filter. Also, we couldn’t discover whether or not this product is non-poisonous or protected for the atmosphere.


  • Patented formulation
  • Works inside first week of utility
  • Able to stay efficient as much as a month
  • Reduces month-to-month water evaporation by 1,500 gallons


  • Inconsistent outcomes with lowering evaporation and warmth loss
  • May not be suitable with a DE filter
  • Unknown if non-poisonous or protected for the atmosphere

9. Ecosavr Heatsavr Liquid Cover



For a non-poisonous and environmentally pleasant liquid pool cowl, contemplate Ecosavr Heatsavr Liquid Cover. This product creates an undetectable layer in your pool water’s floor to reinforce warmth retention by slowing evaporation.

We discovered that Ecosavr Heatsavr labored nicely for many pool house owners. However, it doesn’t state compatibility with filtration programs or pool chemical compounds. We found situations in which this liquid pool cowl clumped collectively, rendering it ineffective.

This liquid pool cowl comes in a fairly priced 32-ounce bottle and is packaged with useful measurement marks on a transparent bottle. For most swimming pools, 4 ounces as soon as every week ought to suffice.

Buyer’s Guide

Even after studying our opinions, you should still be contemplating whether or not to strive a liquid pool cowl. In this purchaser’s information, we’ll examine how including a liquid pool cowl compares with protecting your pool with a solar blanket. Besides debating the advantages and disadvantages, we’ll additionally handle necessary components to contemplate earlier than you make a purchase order.

Liquid Pool Cover vs. Solar Blanket

While it’s true {that a} photo voltaic blanket yields comparable outcomes as including liquid pool cowl, the 2 merchandise have key variations. Deciding which product to make use of could come down to non-public desire.


Solar blankets require day by day setup and elimination. While they work nicely to dam particles from getting into your pool, the on-and-off course of could be moist and messy. Liquid pool covers solely have to be measured and rapidly added to your pool water. However, you’ll have to maintain observe of every utility and maintain an everyday weekly or month-to-month schedule in order to keep up its effectiveness.


Liquid pool covers go the place some photo voltaic blankets can’t attain. You can use a liquid pool cowl on irregularly formed swimming pools and people who have spillovers or waterfalls.

Pool Compatibility

Solar blankets have the benefit of not disturbing chemical balances and don’t intrude with filtration programs. If you’re shopping for a liquid pool cowl, remember to examine whether or not it’s suitable along with your pool’s tools.


A photo voltaic blanket could have the sting in effectiveness when it’s in place, however liquid pool covers work consistently all through the day and the night time. While wind and swimming activity can disturb the protection, a liquid pool cowl can rapidly re-set up itself throughout the water’s floor, offering extra hours of water evaporation prevention.

Safety Concerns

Solar blankets pose a threat for attainable entrapment. Liquid photo voltaic covers have been discovered to be protected to make use of for all swimmers and pets. Be certain to purchase a excessive-high quality product for optimum security. The best liquid pool covers are non-poisonous, biodegradable, and pleasant to the atmosphere.


We chosen Natural Chemistry 7100 Cover Free Liquid Pool Cover as our prime choose for the very best total product on our listing. Natural Chemistry makes use of superior mono-layer know-how to ship outcomes, together with an 85% lower in water evaporation and a 70% discount in warmth loss. This liquid pool cowl is very efficient attributable to its wonderful floor pressure that retains it in place and dealing. This product is protected to make use of instantly after utility and is pH impartial.

For the very best worth, we suggest Tropical Fish Liquid Solar Blanket. This product is ready to cut back water evaporation by half its common fee. Biodegradable, environmentally pleasant, and non-poisonous, Tropical Fish Liquid Solar Blanket is protected for all swimmers and pets, is suitable with all filtration programs and pool liners, and doesn’t have an effect on your pool’s authentic chemical steadiness

LO-CHLOR Aqua Blanket is our premium selection for its effectiveness in lowering evaporation and enhancing pool temperatures. This liquid pool cowl offers a skinny, undetectable layer of safety that conserves water and reduces chemical use. LO-CHLOR Aqua Blanket is suitable with all filtration strategies and pool liners and is protected to make use of.

Hopefully, our informative opinions and helpful purchaser’s information have helped you discover the very best liquid pool cowl to strive in your pool. These covers is usually a handy various to plastic photo voltaic covers. With the correct liquid pool cowl, you might be able to take pleasure in your pool longer and get monetary savings from changing water and chemical compounds.

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