Unfortunately the Hoover F5905-900 is a little outdated, and Hoover doesn't have that model on their site. They do however have the Hoover F5906-900 instruction manual which I linked below. This model is identical to yours, and will explain all that you need to know.
If it's parts that you are looking for, here's a link to the parts for the Hoover SteamVac on our website:
Hoover SteamVac Parts & Accessories
If it's something else that you need help with, please don't hesitate to add a comment on this page with your question/concern and I'd be more then happy to help you out.
Here's the link to the owners manual:
Hoover SteamVac F5900 Series Owners Manual
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