Thanks for your recommendations n comments, chaps!
Looks like I've gotta give something else a go, maybe the Red 7, just had a look and I've got a 5L of the Tardis in the garage, does work well!
Think I may actually have some of the -X iron remover too, or something similar that I also bought from Chem Guys!
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Last edited by maxibaby01; 3rd August 2017 at 10:03 AM.