Will a pool heat up faster with the cover on or off?

Even the more transparent pool covers filter out a good amount of energy going to the pool. If your ambient temperature is decent and there is not much wind, leaving the pool cover off will heat the water faster (and not just heat the cover and the water near it).Click to see full answer. Simply so, should I take my pool cover off during the day?If you stop using your cover during the day it will heat all the way to the bottom of the pool. It will also heat the pool better if you leave your pump off during the day. Then you can close your pool cover at night so it doesn’t lose heat to evaporation! On a humid, calm or sunny warm sunny day, then open it up.Likewise, how much heat does a pool lose overnight? Pools that are not covered can lose 4° F to 5° F overnight in most parts of the country. With a cover, you can reduce that heat loss by 50% or more. So without a heater you should be able to use your pool in the afternoons and early evenings, in the warmest part of the season. One may also ask, does covering a pool make it warmer? Insulating the Pool Water From Heat Loss 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.Should I cover pool at night? Helps the Swimming Pool Retain Heat Covering a heated swimming pool at night will reduce heat loss. 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.