I don't think it works better. I think that its just very convenient. I'm not sure though because I've never even tried it. If the vacume doesn't work I'll try an air compressor.
Here we are trying to get the white concrete on without it washing away with the rain.
Some of the boulders that looked a little tipsy are getting reinforced.
The color of the rocks are coming out nicely.
Another look at my lost 3rd gate valve. They cost $105 here.
We're going for the cement pilar look for the railing, except it will be with white concrete to match the terrace.