The slab for our house was poured today ... and the concreters are still there, waiting for it to dry more so they can trowel it really smooth ... and there were a few drops of rain as we left! Eeek. If it rains a lot it'll be too wet for them to trowel smooth and the raindrops can leave pits in the surface. We're not going to grind it back so it's really important that the finish is really good. Fingers crossed!!