We have a 3 year old Forest River Cherokee 264L. It does not have the arctic package but has a rubberized cardboard enclosure around the 3 tanks that extends from front of trailer to about the axles.
In mid april while getting ready for the season I experimented with draining the hot water tank without removing the anode rod. I forgot the hot water faucet was open and turned on the water outside the trailer and got side-tracked with looking at a wheel bearing.
I was at the wheel bearing when I saw water starting to drip out of the bottom of the trailer and immediately knew what happened (nothing gets past me). The grey tank had overflowed into the shower and spilled over into the floor on the right side (I had it jacked up on the left side). I immediately jumped into Steve McQueen mode:
=I cut into this rubberized cardboard bottom and into the plastic seal under the floor to let it drain.
=I rigged a corded leaf blower to the access door under the shower and ran air thru the holes in the bottom for about 24 hours
=I pulled out all the wet insulation I could reach and replaced it with new, but could not get the wet insulation between the top of the 2 waste tanks and the bottom of the floor.
=I then sealed up all the cuts in the bottom, rented a dehumidifier, and ran it in the sealed trailer for 4 days (about 1-2 gallon a day).
I consulted a reputable RV repair place and my insurance company. They want to cut the 2 tanks out of the bottom, replace all the insulation, and splice the tanks back in place (requires holes in the walls to cut/splice the pipes). It's about $2,500 and insurance will cover all but the deductible.
We just returned from 3 weeks out west in the driest of humidity, which should have helped. No sign of mold or residual moisture anywhere, and I keep dessicant pots under the shower, bed and storage locker.
My concern is mold on such a new trailer, but the more I think about it this repair is very intrusive and has the potential to create a whole new set of problems that may be worse. We are getting close to cancelling the claim and not letting them take the tanks off.
I talked to a technician at Forest River and he thought my efforts so far were "probably" adequate. He did not think the tank removal was necessary.
Anyone have experience with this situation? .....and/or opinions or experience on the risk of mold if we don't do the repair????
Thanks. (and don't tell anyone I made such a stupid mistake)
2013 Tundra, 5.7FF, TRD, 4WD, tow pkg
2014 Forest River Cherokee 264
Prodigy II / Equalizer 10K
103 nights & 12,700 miles since April '13