Question 5: Do I need a solar pool cover too?

Not necessarily, although they are recommended. At night, when temperatures fall, both heat and water evaporate from your pool. Losing the heat at night, along with refilling the pool with cold water, makes it harder for your solar pool heater to reach and maintain your ideal temperature. We understand that sometimes covers can be a hassle. For those with uniquely shaped pools, a liquid pool cover may be an easier option. Just a few drops of liquid creates a film on the water which reduces heat loss and evaporation.