Quote:
Originally Posted by TreeSemdyZee
The point of putting the magnet on the filter is to hold any metal bits in the filter, which you throw out when changing. If you put the magnet on the pan, chances are that not all of the bits will drain out when draining.
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Not sure of that (maybe). With a magnet on the pan, however, you could use a larger and stronger magnet that could pull more metal out of suspension. Also, larger surface area would inverse your probability of capture. Plug magnets have a relatively small (point) surface area.
Not sure about filter magnets, stuff that passed through modern filters must be tiny.
Would make an interesting experiment.