If you say that's what it is, I have to believe it.
My info seemed to indicate my 3 tanks are physically the same size (30 Gallons). The extra volume of fresh water was in the plumbing, I was told.
<sigh> What's a mother to do.
Lou and Laura with Bella - German Short Hair Pointer
2008 GMC Sierra 2500HD Crewcab SB Allison Duramax
2010 Flagstaff 8526RLWS - Superglide 3300
HAM CALLSIGN - KC3FFW