I felt there is too much give on the shower pan, which I worry could loosen or crack the drain, so I added additional support to shore it up.
http://www.jaycoowners.com/forums/at...1&d=1502745016
When you open the compartment at the floor, what you see is a 4 inch duct. You need to bisect this duct to do the job, then repair it later. It's helpful to remove the vent to the right so you can get your right arm in to assist. It's easy to re-attach.
http://www.jaycoowners.com/forums/attachment.php
attachmentid=34087&stc=1&d=1502745391
This is what it look like underneath there, and that's where the issue is.
Underneath the shower pan there is 1 inch of foam, and underneath that is a piece of 1/2 inch plywood. Jayco provided 5 standoffs made of 2 by 3 wood, two at the shower head side, two in the middle, but only one on the back right. What I added was one very much needed on the back left.
http://www.jaycoowners.com/forums/at...1&d=1502745922
The supports are just shy of 6 and a half inches. I put some glue on the end and I think they'll stay. The job is hard because it's very busy under there, and access is so limited. Your working in a small space with the toilet at your back.
http://www.jaycoowners.com/forums/at...1&d=1502746302
Next up repair the duct. I admit it was hard to cut into that duct on a new rig, but the repair went well and now I have a very solid feeling shower pan, and hopefully won't get drain issues.
http://www.jaycoowners.com/forums/at...1&d=1502746490
The repair isn't pretty, but it's effective. Hope I won't have to go in there again.
I wanted to do each picture with the wording underneath. Sorry bout that. If any of you folks can show me the right way to do that much appreciated