If the insulation got wet, there's no way it will ever dry with just a fan.
My 26DBH is in the shop currently because one of the fresh water "T"s let go and dripped all last summer (it's first summer) and filled the cavity with water, also soaking the insulation. They have to slice the underbelly, pull it all, dry it out, make the repair, replace the insulation and they make a special underbelly tape to repair the slice.
2016 Grey Wolf 26DBH following a 2014 RAM 1500 Outdoorsman
Life is good...Live it!
(2014) Nights Camped - 16 in 6 trips (2015) Nights Camped - 20 in 6 trips
(2016) Nights Camped - 21 in 7 trips
(2017) at least 23 Nights Planned in at least 6 trips!