I have been putting sulfur under my bed, not very often but once every couple of months. There is something I need clarified, what is the procedure here? I see the sulfur that I put there before, so it is not disappearing. I have just assumed that it needs to be freshened up every couple of months, but perhaps I am wrong. Is it just a one time thing? Or do I just need to vacuum it up every couple of months? Does it tend to get depleted? How about distribution, should I try to sprinkle it around or does it work better in a clump?

Thanks for your assistance with the matter.