shower leak on floor

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paulmars

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Any ideas what i can do to fix this without tearing out the shower?

shower drain never backs up, but pipe below it does leak below shower floor and only when taking shower. See pics.

The drain must be leaking. It gets wet inside that wall and with long showers, it leaks out onto the finished floor.

Pic 2 is the lower part of that wall you see in the other pic (red box). With that blue plastic wall cover removed.

wet with every shower where the yellow X is and then gets wet where the black X is with longer showers. shower drain is just a few inches higher and never backs up.

This shower was installed over 10 years ago and this issue just started happening in the last 8 months. Started shortly after i had the outside sewer line replaced and tenant moved in at same time. maybe coincidence. Maybe previous tenants never took long showers.

The other day we did run a snake down the shower drain at least 10 feet. that is well into the new sewer line that was replaced about 8 months ago. Its still getting wet as mentioned above after snakeing.
 

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Snoonyb

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A more panoramic photo and, another showing the inside of the shower would help.
 

Sparky617

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The shower looks like a two piece affair. The pan and a three sided wall structure. Could there be water leaking out of the seam between the pan and the walls? Have you tried running the shower to see if you can see where the water is coming from?
 

paulmars

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only leaks when human body is then there. (weight on floor)

after i remove the foam (and find and fix the leak), how about cutting some blocks to fit below the pan and using block caulking to hold in place?
 

Sparky617

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The foam is there to keep the fiberglass pan from flexing. I've seen mortar or concrete used to accomplish the same thing. It sounds like something is flexing and allowing a leak that doesn't appear if you just run water into the shower without someone standing on the shower floor.
 

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