Sorry to hear about your water damage. The floors have been replaced by SOC members with the camper intact.
Follow this FAQ link and scroll down to
Restoring a Sunline
1. Repairing water damage on your Sunline.
There are some pics of the repair process by fellow members.
The cabinets may or may not have to come up. It "depends" on if the water wicked under there or not.
Here is a product you can use to treat the floor joists from fungus and decay once you get the floor up and dried out. Wood preservation, rot repair, and restoration using epoxy resin on boats and homes.
It will kill and seal any bacteria so you do not get dry rot later on.
Where the leak came from? that is hard to tell. The answer will hopefully appear once your start into this. Unless you run into someone with your floor plan and the same problem, it is hard to tell. Some have had the issue from a leaking toilet on the fresh water side. Some have had intrusion from a window working it's way down the wall.
If you do take this project on, please post pictures of the process. These really help folks coming behind you sort this same problem out when it happens to them.
Good luck and hope this helps
Current Sunlines: 2004 T310SR, 2004 T1950, 2004 T2475, 2007 T2499, 2004 T317SR
Prior Sunlines: 2004 T2499 - Fern Blue
2005 Ford F350 Lariat, 6.8L V10 W/ 4.10 rear axle, CC, Short Bed, SRW. Reese HP trunnion bar hitch W/ HP DC
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