Thank you for the info Mr Beef. This morning when I was out and about on my travel's,I stopped by the local timber supplier. The question asked was,"Can you suggest a wood bleach....?" The man at the counter told me that a UK company called Rustin's used to do a ready made wood bleach,but they didnt have any in stock because nobody ever bought it. So my thought's as I drove away were to look on the internet and find some Rustin wood bleach. Im busy doing a major property rebuild on a property I own and when there this afternoon I had a bit of a (possible) brain wave. Im going to do a bit of an experiment before I say what the brain wave was,just in case it doesnt work. But I have started the experiment and so far the result does look promising. It's so simple it's stupid. Or I am if it goes wrong.