Should you turn your pool pump off at night to reduce the power consumption of the pump to zero for that period of the day?
It is worth bearing in mind that the water surface will be covered by a floating blanket in parallel with the pump stops. Accordingly, at this time, not only the evaporation of water but also the chlorine dissolved in it will decrease, and maybe this chlorine available in the water will be able to perform its function of disinfecting water for a long time, and there is no need to add it regularly.