I suggest you pull the plastic sleeve off the magnet, and scrape the sludge into a clean jar. label it with the date and put it in as safe place.What does your magnaclean look like inside?
We were advised by the pf guy to check it after 6 months, this we did last weekend and it was 1-2cm thick with black iron all over the magnet.
Do this every two weeks until you get less than 5ml (a teasponful) off it, then reduce to once a month or once every 6 months, or whatever interval gives you no more than 5ml.
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