Visit PirateBay.org, isoHunt.com, or similar Bit Torrent search engines to search for the solution manual. Very popular textbooks will be available via torrents, but it can be very hit or miss.
GOOGLE IS YOUR FRIEND
When it is late at night and you need a solution “Right NOW”, use Google to save the day. The trick to search for a solution is to use quotations.
“Water at” “exits to the standard” “split nozzle” “Duct Areas”
Clicking the 5th result takes us to a page with the solutions.
Hope those tips and ideas help you learn how to start searching for your Textbook solution manuals. You keep trying all methods and I m sure you will come up with great results getting what you are looking for.