Good save. Sorry that happened to you. I had bought a replacement (and quieter) pump just in case, because I had heard issues of this happening, and also researched on noise reduction beforehand. I have not installed it yet because I got my Grobo and was too excited to do any serious modifications before even trying to see if the unit works, etc.
Hope your little one does okay! Sending out some gooood vibez her way ------------------------->
Keep us posted!