The longer you leave the pool cover on, the more likely it is to break and tear. The elements can put pressure on the pool cover, which can cause damage. In addition, debris and animals can also cause rips and tears. It's important to take good care of the pool cover to keep the water clean and clear. As a rule, you should not leave the pool cover on all the time.
In fact, removing your pool cover on a humid, sunny day can help heat the pool, which in turn reduces running costs. On windy days, consider using a clear or bubble cover to prevent water evaporation. Also, you have to think about what will happen to all that stagnant water if you leave it on the deck for a while, especially in winter. Some water may freeze, which can further stress the cover. And once it melts and it's time to remove the cover, all the dirty water will pour directly into the pool if you don't pump it out.
Winter covers protect the pool from stains, algae growth and poor water balance that could damage pool surfaces. Pool covers block both dirt and sunlight, preserving winter chemicals and protecting soft, shiny surfaces. And a pool safety cover keeps your pool safe and looking fantastic. Warmer days in San Diego, especially in summer, can cause pool water to evaporate. This process can continue overnight, which means that you will have to refill it to the correct level more often.
Using a pool cover at night can reduce evaporation. In addition, the cover will trap accumulated moisture and return it to the pool naturally. You will be rewarded with a more consistent water level and perhaps even a lower water bill. Because a storm can lift the pool cover, it's best to keep it off until the rain has passed. Leaving the sun blanket in the pool during winter will keep leaves and other organic materials out of the pool. Always cover the pool at night as doing so will retain heat and prevent debris from falling into the water.
However, an automatic cover pump is the easiest to use as it automatically turns on when it detects water in the lid and turns off when the water has been removed. You can compensate for this problem by adding chemicals to your pool more often, but doing so could increase cases of skin irritation, watery eyes, and other discomfort for anyone who uses your pool regularly. During pool season, your county health department may require that the pump be running during pool hours. By covering the pool at night and uncovering it during the day, you can save time by heating up the pool water. Because evaporation is a major concern, pool covers should be used whenever the weather is dry or windy. In addition to reducing evaporation, using a cover when it is windy will prevent debris from entering the pool.
Keeping a cover on during rainy weather can also cause rainwater to put pressure on the cover, ultimately causing it to sink. By removing the cover during the day, sunlight will help warm up the water allowing for an even temperature throughout your entire pool. Usually if you cover your pool you may feel that only top of your water is warm while bottom remains cold but what happens if you leave it open most of time to heat entire pool? I hope this helps you decide whether or not you should have your pool cover on or off during day.