Location of fuel sending unit?

[fishr]

Hi all,
new here & just bought a 1990 Glastron Sierra 199 and the fuel gage does not work. I would like to replace the fuel sending unit as I think that is where the issue is but I can’t see it anywhere? I don’t want to hack up my entire floor looking for it! If anyone knows a roundabout location of where this thing is on my boat it would be greatly appreciated!
Thanks in advance.

 

[Scott Danforth]

Test the gauge

For the sending unit, follow the fill hose