Quote: (Originally Posted by
Dave & Sandy)

Hi,
You'll need a tooth brush and an old hair drier with a home made hose attachment to go down into your cylinders to dry them out straight away to prevent flash rust occuring. Alternatively a cylinder of air will do as well.
Have fun.
If you are going to use a cylinder of air to quick dry the cylinder that you have just O2 cleaned, make sure that it is absolutley O2 compatible air, otherwise you will pollute the tank before you even get the valve back on.