Washing Out a Steam Boiler (when skimming doesn't work)
When installing a new boiler there is a process called skimming that all boilers must go through in order to get the oils out of the boiler that are introduced via the manufacturing process. This can be a pain in the butt as it sometimes takes many visits. There is nothing that can be done about this. It must be done. There are even times that skimming doesn't seem to work. That is when its a good practice to wash out the boiler.
We just did this on a recent installation and video taped it. You can view it here. It is rather long, being 18 minutes but it is the whole process. Washing out a boiler is a fantastic way to clean a boiler.