Irony....I know... Anyway I haven't messed with concrete much before, maybe 2 or 3 times for fence post or driveway patch but I recently had a situation that made it necessary to fill in a spot on the property and the 40# bag of Qwikcrete didn't fill it quite as high as I wanted it. It was after 4.30pm when I realized this problem but I really needed a beer(or 8) so I put my sh!t away and drank....Now what I'm wondering is if I go buy another sack of crete can I mix it up and pour it over the stuff already in the hole? Will it just dry on top of the other stuff and make 2 separate layers or will the 2 bind with each other? I've also read somewhere that some fence guys just pour dry concrete mix in the open hole and the concrete mix will absorb the moisture from the soil and set itself ....Any truth to this?