god you lot dont half waffle
simply put the higher the tds the more chance of spotting,anything up to 10ppm
ive never had a problem with. 15ppm i have def seen spotting.certain types of frames
can cause you problems even with 0ppm.my personal favourite is those crappy windows
covered in that stick on fake lead crap it always causes problem,but hey just worked round it.
the thing is wfp isnt a perfect system it isnt going to do all the work for you,sometimes
you might just have to think for yourselves i know its asking a bit much but i have faith
in you

bloody bunch of tarts
