Snakes will be looking for still water to hide in, or water full of food for them to eat -- your pool should be moving and lacking the food sources they're looking for. If snakes do arrive, they'll leave fairly quickly. To prevent snakes from being attracted to your pool, keep grasses cut short -- snakes are more comfortable in longer grasses.
If you're seeing a steady supply of snakes nearby your pool, there may be something else attracting them. Make sure there's no nearby place where rodents would like to hide, like in sheds or under piles of wood. A steady food source is the number one attr
