Originally Posted by bandmbrown
Dog folks...be interested in knowing why the pan was cracking.
On our first two tubs, there were four small wooden strips vertically in each corner, supporting the tub, besides the platform it was sitting on.
They were not the same length. They varied in length by 3/4”. As a result, the tub was not sitting flat on the support platform. The flexing this caused, with each use eventually cracked two tubs in exactly the same place.
Asking about this on RV forums, members suggested the flexing problem. Upon inspection of the platform, we could see “wear” marks where the tub was rubbing.
I never thought of unequal supports. I guess I didn’t believe that the build quality was that poor!
We now have a shower pan, instead of a tub, and new platform of ¾ marine plywood and 2X6 legs. It will not flex any more, even under my heavy 295 pounds.
By the way, we replaced our own because the local RV dealer wanted $110.00 per hour for eight hours to do the job. $880.00 to replace a $139.00 part! I timed the first replacement and with my non professional fumbling, lack of all the tools needed, and building a new platform only took me 5 hours!