Ignoring foxholes girly little limp wrists for a moment, having read various replies and given it some thought over the last day or so I suspect anything other than an industrial strength vacuum and a proper hose will be rubbish. It's also apparent that it's no good extracting the stuff into anything but a massive reservoir (ie a skip or similar outside on the ground with a tarp over it), the 45ltr extractor linked to earlier in the thread will fill up after about 10 seconds.
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