Leak From Behind Panels - How to Seal From Behind? Drainage and wastage systems and plumbing help, advice and answers

[rosterry]

I have a corner shower which is lined with plastic panels - the honeycomb type panels are about 12" wide- when they were installed the plumber sealed the joints from behind, but now they are leaking.
How can I re-seal them is there a spray or something I can put in the joins

[stoneyboy]

rosterry,
You apply a bead of silicone sanitary mastic down each join. The problem will be getting the joins dry enough for the silicone to adhere. This is a job for the dryer weather when you can leave a window open and not use the shower for a few days. Check for dryness by holding a tissue in the lowest part of the joins.
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