If I were doing this I would want crystals in it. Reading a book on orgone, it's clear accumulators do just that: accumulate energy. It doesn't discriminate between good orgone and dor. They recommend using accumulators in areas well away from dor generating sources (basically in the country away from power lines, cell towers, etc.). In the city, that just won't work. There's a reason Reich did his work in the Maine countryside.