Feel along the side of the pool wall until you find the drain plug cap. Remove the drain plug cap and set it aside in a safe place.
Take a hose and attach the female end to a hose adapter. If your Intex round Ultra Frame pool did not come with a hose adapter, you can buy one separately at the Intex website or your local Intex retailer.
Move the end of the hose to an area away from the foundation of your house, where the water can be safely drained out of the pool. Screw the end of the hose adapter onto the drain valve on the side of the Intex pool. Water will immediately start to flow into the hose and drain out of the pool.
Disconnect the hose adapter from the drain valve when the pool is empty. Put the cap back on the drain valve.