I find that turning helps to get more air into the mix, and accelerates rotting. Two daleks at right, go into one rotol (middle). Two to three rotol fills goes into one tardis (left of picture.) If its dry when I turn it into the next bin, I turn the hose on it. Als o getting the men of the house to pee on it helps.
Tardis will fill up all summer and left all winter, and be used next spring.
One of the daleks will have all peelings etc over the winter. When the grass gets its first cut, the winter kitchen bits get a good mixing with the grass cuttings. Hedge trimmings and buddleja cut down get shredded, mixed with grass cuttings, and stand well back. The heat build up is quick, and the level will drop by half in two weeks.