Ernest,
Change it hot? Not!
If you read the instructions that come with it, they'll tell you to let the engine cool off a little bit, or the suction tube can and will melt.
Boat U.S. actually has a sale on this item right now for $34.99
http://www.boatus.com. They also have several other brands available. The best one is an electric 12v motor that is mounted on top of a black 5 gal. bucket. It hooks up to your car battery with jumper clips, and sells for $150.00
The other outlets like West Marine
http://www.westmarine.com, and Overtons
http://www.overtons.com charge $45 to $47 for Topsiders! You can also check out Donald Swinford's low cost rig at a website that Alon "ashman" just put up with a link to it in the tech forum.
__________________
"We drive into the future using only our rearview mirror."
- Marshall McLuhan -
Scott Longston
Northern California Wine Country...
"Turbos whistle, grapes wine..."