A spokeswoman for Auckland Council said the blessing us for staff at the YMCA managed centre.
"We understand the blessing this afternoon is for the staff at the YMCA who have been affected by yesterday's sad events, and to help support them through this difficult time."
Staff performed CPR until the fire service arrived with a defibrillator but the man couldn't be saved.
"He looked very pale," the onlooker said.
"Things didn't look good."
Auckland Council active recreation manager Rob McGee said council will be working with staff, contractors and anyone at the pool when the incident happened to offer support.
"Sadly, despite the efforts of trained lifeguards and staff who immediately attempted to resuscitate the person, the person was unable to be revived," he said.
"Our thoughts are with the individual and their family, as well as the staff, at this difficult time."