In dry and/or windy conditions, the evaporation rate of the pool increases. Therefore, it is generally beneficial to have a transparent or bubble cover on during daylight hours. In warm, humid conditions the evaporation rate decreases. In this case, it may be more beneficial to leave the cover off during the daytime.
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.
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.
Helps the Swimming Pool Retain Heat
For a swimming pool that relies on the sun for heat, covering it at night can still make it warm enough to swim in the next day, instead of losing all the heat overnight when the temperatures drop.
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.
The fastest way to heat your pool is to use a gas pool heater and a solar cover. It's like heating up your coffee in the microwave and putting a lid on it. No matter how you plan to heat your pool, you should at least have a solar cover (or liquid solar cover) to help you retain the heat.
According to the World Health Organization, water temperatures ranging from 78 to 86 degrees Fahrenheit are generally comfortable and safe for those engaging in moderate physical activity in a pool.
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.
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.
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.
Must You Use a Winter Pool Cover? No, but winter covers protect your pool from stains, algae growth and poor water balance that could damage pool surfaces. Pool covers block both debris and sunlight, to conserve your winter chemicals and protect soft and shiny surfaces.
As long as you are willing to wait for the pool to heat, it is cheaper to turn off the heater when you aren't using the pool. BTUs are BTUs. The pool needs a certain amount to heat to a certain temp and will lose a certain amount.
Water temperatures are slow to heat up, and just as slow to cool down. Water is very "stubborn" to change temperature. It takes 4 times the energy to heat up water than to heat air. Water also "feels" colder because water is a more efficent medium than air to cool our body down.
Day Heat Warms the Water
Sunshine warms the water starting in the later morning until the late afternoon so that by nightfall, the water is at its highest temperature.
This black hose trick uses solar energy in a simple but clever way to heat the pool. Purchase a black garden hose. Unravel the hose and connect it to the water tap outside your house. Then run the hose to a spot that gets direct sunlight, and wrap the house in coil formation in the direct sunlight.
You know those black trash bags? They can hold heat too. Fix one up to a hula hoop and if you want, cut one side of a pool noodle to add buoyancy and you've got yourself a super cheap pool heater.
A pool heat pump should not be left running all the time. For one, you are wasting electricity by keeping it on when your pool is already warm enough. Also, this will lead to an increase in energy costs month after month.
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.
As such, there's no universal rule about whether rain water makes swimming pool water warmer or cooler; it all depends on whether the rain is warmer or cooler than the pool. If the rain is cold, it may cool down your pool water.
While pools should be never above 95 degrees, anywhere in the 90-92 degree range creates a comfortable, yet therapeutically warm environment for older swimmers or infants and toddlers learning how to swim.
You should never leave your pool heater on overnight. Doing so is not efficient and will cost you more than it would if you just turned the pool heater off. While many of us know that heating a pool can take up to several hours, running it overnight defeats the purpose of heating it at all.
We have found that turning the heater off at night allows the water to cool rapidly. The heater then has to burn at a higher rate in the morning to make up the lost heat. The higher you turn the burner the lower the heating efficiency and the greater the heat loss from the exhaust gases.
Also, turn the temperature down or turn off the heater whenever the pool won't be used for several days. This will save energy and money. It's a myth that it takes more energy to heat a pool back up to a desired temperature than you save by lowering the temperature or turning off the heater.
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.
Do I Need A Pool Pillow? While they're not 100% necessary, winter pool pillows are incredibly helpful. They help protect your pool from expanding ice and promote even weight distribution, which is why we highly encourage them for pool owners.