Always replace the cooler water every 2–3 days in a week to prevent mosquito breeding and algae formation.
To naturally repel the mosquitoes, add a few drops of neem oil or place camphor tablets in the water.
To avoid dirt scrub the water tank with mild detergent and a brush weekly .
To prevent mosquitoes from entering or laying eggs cover it with water inlet with fine
Add eucalyptus or citronella oil in the water to freshen the air.
To prevent mosquitoes avoid water stagnation around the cooler.
If not using it for few days always empty and dry the cooler to stop bacterial growth.