We have just put up a pool and ran electric for pool pump and the gfi breaker keeps pooping when we plug it in, does anybody know why. It is the same amp as it asks for and all the wiring is fine

Who ran the electric?
Was it done to code?
Was it inspected?

Pools are NO place to fool around if you don't know what you are doing and don't know the proper codes, and there are plenty of important ones.