Welcome to the forum schwalbach, glad you joined us.
Some manufacturers specify the number of gray tanks & sizes in their literature, and others don't...
Keystone does not! Despite what the salesman said
it's highly unlikely that any manufacturer
would put 2-60 gal [EACH] gray tanks in a "lighter-weight" trailer or 5th wheel. Obviously he needs
to learn more about the products he sells, IMHO.
All that said -- you have a Laredo "Super-Lite", correct? Then you should have 2-30 gal gray tanks,
for a total of 60 gal gray water capacity.
As shown in the link below, all of the "Super-Lite" models have 30 gal capacity (black & gray) tanks...
the indication of '2' gray tanks is the 60 gal (total) gray water capacity on certain models.
http://www.keystone-laredo.com/index...pecs&year=2012
Enjoy your new 5th wheel, and Happy trails!
Terri, the Chevy co-pilot