— It was autumn and the sand was damp. You know yourself that damp sand won't go through a fine mesh screen. There were also stones in the sand. I tried the fine mesh screen but it didn't go through. If you wait until it dries, until you can sift it, you'd have to wait a week. So you need to have larger holes to sift it at least somewhat. I came across this thing that was used to store eggs, and I thought I might be able to use it to sift the sand. There were two, actually. I tried it at first without the box, without edges, but it was very slow. Then I made this box, hooked it on, and it started to sift. No kidding. It worked pretty well and I used it a lot. Almost a whole bucket of sand fits in there, then you shake it, and all the stones stay on the top. It was wet sand, remember, and had damp lumps, but they didn't plug up these holes (...) There was a building site, and we were building a house. It was a temporary thing for me. I'm not a construction worker by profession. But it was necessary so I did it. And this was exactly the kind of sieve we needed. It was a one-off thing, made for a specific moment in time.