Answer:

There are frog repelents available that would work to keep frogs away. There may be precautions necessary for use around the swimming pool. Follow manufacturer's directions. Another trusted method is to spray a solution of vinegar onto the surface where you keep getting frogs. Frogs do not like the burning sensation this causes. However, the odor can obviously be mildly irritating. Last, make sure you do not leave lights on around or in the pool as this will attract insects which will also attract the frogs.