I don't think there is anyway to get there except to remove the shower. On the other hand most rigs have that and few have an issue with cracking. If it does crack, the fiberglass tub repair kit from Amazon does a great job of fixing it.
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Dick, Joyce, Diego, Picatso and Gustav
2017 3720 RL, and 2013 HC 343RL
Pullrite Hitch, IS, Disk Brakes, 3rd AC, Winegard Traveler, Bathroom door mod, Dometic 320, couch for desk swap, replaced chairs, sun screens, added awnings, etc.
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