should also allow your pet to walk around the perimeter of the water while they are on land. this will help them assess everything and help them understand what is waiting for them. you should wait until your dog shows signs of being happy and relaxed around the water before you attempt anything. trying to swim with an uncomfortable dog can cause a fear of water which takes years to deal with.
if you are going to be swimming with your dog in your pool, you need to teach them to safely enter and exit the water. it is recommended that you train your dog to enter and leave the water 