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How to remove top of bathroom sink hot tap? - index of me bathroom jpg

I had some useful advice on my previous question - "No water from hot water faucet in the bathroom sink - http://uk.answers.yahoo.com/question/ind ...

I know it's stupid, but I can not inspect on the top edge to see if you need a new washing machine. I removed the top cover and screws, you can below. The problem is the orientation of the screwdriver to undo the screw. It is very difficult to achieve this approximation because the lock in any way in the faucet. Are there interesting things that can be proposed.? You can now see that I am the first candidate for DIY disaster!