Clean the water that is in the pool with a pool net. Use the net to pick up sticks, leaves and other debris that may be contributing to the cloudy appearance of your pool's water. Run a water filter through the pool to remove mineral deposits from the water.
Use a pool vacuum to clean any debris that the pool net and water filter didn't pick up. The water should look a lot less cloudy after you do this.
Drain and refill the pool. Wait a few minutes after turning on your hose to see if the new water clears up. If it doesn't, repeat the previous steps to get rid of more debris.