I have noticed the few times I used it....my shower pan sure felt mushy and after reading a few posts on here figured it would be an easy fix. After removing the panel the problem is obvious. They used 3 2X4's to support the plywood (why not use 4?) and one of the 3 was not even resting on the floor. They simply nailed it into the plywood and it hangs down in the open space. There was no support for the panel side of the shower pan either. We could have easily ruined the pan after a few more uses. I find it hard to believe some one did not notice this as they were installing it.
( not sure why the pics are upside down)
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2017 Georgetown GT3 31B3
N Little Rock AR
My sandpiper was the same way, I cut three 2x4s about an inch shorter then the cavity depth and then slid them in under the pan. I had planned to spray minimal expansion foam in between the 2x4s as I installed them but after dry fitting them the pan as rock solid so I chose not to use spray foam. I also stuffed insulation in all the holes they cut under the pan and it helped when camping in the COLD months.
My sandpiper was the same way, I cut three 2x4s about an inch shorter then the cavity depth and then slid them in under the pan. I had planned to spray minimal expansion foam in between the 2x4s as I installed them but after dry fitting them the pan as rock solid so I chose not to use spray foam. I also stuffed insulation in all the holes they cut under the pan and it helped when camping in the COLD months.
That's a good tip on the insulation. I used 4X4 supports cut to where I can barely maneuver it, along with a dab of liquid nails. Put one in the rear and 2 up front after I cut out a filler piece of plywood to put under the Styrofoam.
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2017 Georgetown GT3 31B3
N Little Rock AR
The more I read about non-quality builds and technology failures on so many RV's the more I'm in love with my 16-year-old 5 er. The interior looks like a new one. The graphics were faded out long ago. I'm making some improvements this year. Outside exhaust range vent. New 320 toilet. New digital T-stat. I removed the 16-year-old satellite dish and TV antenna last year when I coated the roof. I have /direct TV on a permanent site.
Just build a Bridge to span the "Opening" and place 2x2 supports from the bridge to where needed under pan,additional plywood may be needed on bottom of Pan also! With your "Upside Down Pic" as a reference turn my advice around also! Youroo!! PS a Dab of Gorilla Glue on all the pieces keeps things in place going down the road!
When you get through gluing the spacers in place fill the opening with expanding foam.
I placed 2 4X4's in the opening. Had some extra cedar and used it along with cutting out a small piece to fill the plywood gap. I figure cedar is not going to expand or contract on me over time....
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2017 Georgetown GT3 31B3
N Little Rock AR
I wouldn’t glue them. I think that if you have problems with the drain and you need to tighten it replace it or make other changes though support pieces might be in your way to maneuver. Something to think about