This doesnt pertain to a V20 but I have a Sutphen 20ft speed boat and I used to be able to get under the engine and hook the garden hose (raw water) directly into the raw water feed line but now I just can not get under the engine and need to be able to hook up the water on the pickup mounted on the bottom of the boat.  A link to the pickup style is included
http://www.westmarine.com/webapp/wcs...0&classNum=217 
I bought one of those plunger looking devices for bottom pickups but it is to small.  Any ideas how to hook up a raw water line?  i am out of ideas. thanks