Getting rid of water marks

[Captain Coochie]

First the picture

I'm not a fan of Oxalic Acid as all it tends to do is bleach the timber . Yes it gets rid of the marks but also makes the surrounding timber lighter so all you are doing is changing shades and not getting rid .
I have tried scraping the ply back with a cabinet scraper and have had some sucsess but again the surrounding timber is lighter .
Any tips ?

 

[Casey]

Have you tried wiping the surface with a fairly damp rag? I did this on a piece of solid oak recently and it removed some water stains. The deep stains hardly shifted but the lighter ones disappeared completely.

 

[Captain Coochie]

Belt sanded , orbital sanded , cabinet scrapered and hand sanded untill i have blisters ..... i dont get blisters on my hands !

 

[Captain Coochie]

No tips then ? I have tried following grain lines with a cotton bud on test peices but the chemicals always seem to make the surrounding wood lighter /forums/images/graemlins/mad.gif