Shower stall caulking.
In my Cambria I see there is caulking where the side walls and floor pan meet. The walls fit over the pan. The caulking is discolored and coming off, is it necessary for it to be there. Not the or...
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As long as the walls overlap the pan on the interior side of the pan, it's probably not necessary, except in the even of an overflow in the shower pan itself, but that would be another issue entirely. That caulking would then be the least of your worries.
