Hello all - I had a concrete floor poured in my garage a little over two weeks ago. The floor came out great, however I noticed one small spot the other day that is a dark grey color. I had used my pressure washer a couple days ago and this is normally the spot I store it in the garage. I think a little bit of water dripped out of the pressure washer wand and got on the floor. I had the garage closed for the last couple days and I believe the water didn't really evaporate. I tried cleaning it with a mild concrete cleaner and warm water but it appears to still be there. It is definitely not motor oil or any other kind of stain. Is this something that will fade over time? I assume because the water was puddled in this spot that it affected how the concrete was curing and caused the discoloration, but I'm hoping someone can clarify if this is probably the case. I attached a couple pictures for reference. Thanks in advance!