2018 262rls with 2 grey tanks?

[mchad3]

So, I just purchased a used 2018 262rls and have a quick question. The control panel has sensor monitors for 2 grey water tanks and the sellers says it has 2 tanks. But the TT only has one valve for grey. Is this normal? Am i missing/not seeing a valve? Do i truly have 2 tanks or is it just one? I know I can answer all my questions by tearing out the underpinning, and looking for myself, but who really wants to do that? Thanks in advance!