Magnet cleaners

[BMW Rider]

I made my own mag cleaner. I bought the rare earth magnets from Lee Valley Tools, used a piece of flat iron for a backing, then encased the whole thing in fiberglass resin. All you need is a small plastic tub to serve as a mould. I use a piece of self stick velcro to hold the scrubber pad on, and a piece of self stick felt pad on the outer half. I think I ended up using eight 3/4" magnets on each half to get it to work on the 1/2" glass of my tank. It does matter how you arrange them too to get the strongest attraction between the halves. Cant remember the layout now, but I had to experiment with it to get it right. The magnets cost me about $20.