From the Fatwa Department
The central theme of Eid-ul-Adha is submission to the Will of Allah Ta'ala and sacrificing everything for His pleasure. Ibrahim (AS) exemplified this spirit of submission and sacrifice in the best possible manner. When confronted with the challenge of love and allegiance, he chose to submit unconditionally to Allah Ta'ala and suppressed his personal desire and love for his family and child.
Q. Does the usage of the pump break my fast?