Is WD40 actually harmful for a chain?

[s445203]

The unfortunate sequence of events below has occurred:

1. Buy bike with Scottoiler
2. Discover Scottoiler is actually full of water logged oil/goo due to broken delivery pipe
3. Fill Scottoiler with WD40 to now have a whole Scottoiler full of bluish white goo that I think is liquid enough to flow out
4. Not being able to find anyway to flush said goo out of scott oiler apart from one drop at a time, for which I just don't have the patience

Has left me wondering whether I can just let it the bluish white goo run through and oil my chain as normal. But will the WD40 actually damage the chain or not? Or do I need to face the inevitable and pay 45 quid (!) for a plastic cylinder with a vacuum valve inside it? Or maybe there's a clever way to flush the bugger out (I don't have access to an air hose unfortunately)....

Thanks in advance for any comments.