A pump replacement is major, I would bet and assume that a unit still is getting water to the aquarium, and any pressure seen by the one user was just because of use from the birch system. Even if they have backups, you'd have to assume when a failure happens, water for the public is the first to be dropped and systems routed for the systems in the birch and marine biology systems. I have no reason to assum that the ground staff tht told goldfish world at least two weeks to be inaccurate. You have all had quotes from construction workers,raise your hand if they beat the quoted time frame... I see, zero hands raised...
I've got a lunch date with a student, I'll ask if they know anything we don't, and at least test it Thursday if it hasn't been updated tomorrow with ny new data, but I'd circle April 30/may 1st on my calendar as a guesstimate. None called kerckoff marine yet? Or too far for most of us?
-John