Air bubbles in the pool cover act as an insulator in a similar way that your thermos would keep water warm. A pool cover will, therefore, keep your pool water warmer for longer.
Directly convert solar radiation into usable heat: In an in-ground pool, a cover can increase the water temperature by 5 degrees F for each 12 hours of coverage.
And the final way that the pool cover keeps your pool warm is by insulating the warmed water. The air bubbles in the pool cover act as an insulator in a similar way that a thermos will keep water warm. A pool cover keeps your water warmer for longer.
In short, pool covers do not need to be kept on pools during the day. By covering the pool at night and uncovering it during the day, you can save time heating your pool's water. Because dry, windy weather may increase evaporation, it is recommended to remove the cover only on humid, sunny days.
Conserves Water
A covered pool conserves water by losing less due to evaporation. This means you won't be filling up your pool as often as you did when you were cover-less. If you live in a drought area, using less water is the smart way to go.
You should cover your pool every night for several reasons. First off, a pool cover saves energy and conserves water by decreasing the amount of make-up water. Also, it reduces the consumption of chemicals, and finally, it saves a lot of cleaning time since it keeps the debris out of the pool.
So while a solar cover won't actually 'turn your pool green', it will warm your water by up to 8 degrees, so if the other conditions are right, adding a solar cover can easily accelerate algae growth, very rapidly. You need to get the water balance in your pool right before putting the cover back on.
Air bubbles in the pool cover act as an insulator in a similar way that your thermos would keep water warm. A pool cover will, therefore, keep your pool water warmer for longer.
A pool that is uncovered can lose up to 5 degrees F overnight; a good cover can cut that loss by half. Used at night or whenever your pool is not in use, the pool cover can help save fuel costs by cutting heat loss regardless of the type of heating you utilize.
Heat Dissipates During the Night
Without the sunlight adding heat to the pool overnight, the temperature of the water will drop by several degrees by morning. The rate of decrease will also increase significantly if the night temperatures drop by 20 or 30 degrees from the daytime temperatures.
Covering a pool when it is not in use is the single most effective means of reducing pool heating costs. Savings of 50%–70% are possible. Pool covers on indoor pools not only can reduce evaporation but also the need to ventilate indoor air and replace it with unconditioned outdoor air.
So, do solar pool covers actually work? The short answer is yes. It has been scientifically proven by at least 3 studies that solar blankets help to warm swimming pools. They also help to retain pool heat at night, help to reduce humidity and help to save on energy costs.
No matter where you're swimming, avoiding water below 70 degrees Fahrenheit is a good rule of thumb for the average swimmer. The truth of the matter, though, is that 70 degrees is still pretty chilly. You'll probably have a better time if you wait for warmer water. In fact, you'll be safer, too.
Heat transfer efficiency is higher with higher flow rates. However, you have to look at total efficiency and cost. It may be worth the extra heat loss to run the pump at lower speeds.
Black covers are opaque, allowing no light or UV rays to pass through the cover. The opaque quality and black color do allow for very fast and easy heat absorption, heating your pool quickly. However, this comes at a cost: black solar covers are typically the first to break down from wear and tear.
A swimming pool tarp, for example, that's black on both sides is like a giant solar panel. Because a black tarp on a swimming pool's water surface traps solar heat energy, it will eventually turn cool, refreshing pool water into a tepid, warm bath.
The longer you leave your pool cover on, the more likely it is to tear and rip. The elements put stress on your pool cover which can then lead to damage. Additionally, debris and animals can cause rips and tears too. Be sure to take good care of your pool cover to keep your water clean and clear.
A pool cover reduces the amount of UV light coming into contact with the water. This is an important advantage as the pool chemical chlorine is degraded when exposed to UV light. This means you won't be required to add as much chlorine, which can save you time to refill and money purchasing the chemicals.
Never close the cover immediately after shocking the pool. It is recommended to wait several hours before closing the cover. Use a test kit to regularly test the pool water. If the tests results are good, this does not imply the water chemistry was good prior to your current test results.
If installing a pool cover over winter, wait until the chlorine level has reduced to between 2-3ppm. Reduce the Chlorine Production Output (CPO on your chlorinator). The pool cover will maintain 90% of the chlorine (produced by your chlorinator) in the pool, as opposed to loosing 70% of chlorine in an uncovered pool.
We recommend it, yes. A pool cover does much more than just cover your pool in the winter. It can keep heat in your pool, keep leaves out of the pool, and save your chemicals and water from evaporating.
The size of your pool, the efficiency of your pump and filter, and how dirty your pool is are just some of the factors you need to consider. Nevertheless, most pool cleaning professionals would advise against running a pool pump for more than 8 hours a day.