Is it limescale from water marks? I normally use a cheap disposable all surface wipe from Lidle or Aldi. So long as you do it a couple of times a week it seems to keep everything ok. One thing I did notice and that was the base of the sink can scratch easily and now I use a simple soft plastic mat in the sink when washing up.
------------- 'A sure cure for sea-sickness is to sit under a tree'
Amazing family weekend with old steam engines, classic car displays, market stalls, and full catering and bar. And camping on site - Save £25 by booking in advance.