Odd leak from edge of end of bathtub

[pineapple.express]

Hello, the edge of the end of my bathtub leaks when I am about 3 minutes in the shower. The faucet is on the opposite side. What could be causing this? I had someone take a look at it today but could not figure out where the leak is coming from. The odd thing is there was no leak when we had water running from the showerhead for 5 minutes but it started to leak when I took a shower hours after testing it. Any help would be greatly appreciated. Thank you.

 

[Jeff H Young]

leak at valve or tub spout. Was the "someone came look at it " a plumber ? if not wrong guy came . are you interested in DIY repairs ?

 

[Sponsor]

 

[WorthFlorida]

Is water running off the top of the tub from water hitting the back wall. Most likely. Google bathtub splash guards.

 

[Kreemoweet]

Water is sneaking in somewhere behind the tiles. It may be prevented from running out at the bottom
of the tiles due to the caulk bead, so flowing along the tub rim until it can exit at that corner. I've enountered
this many times. Most tub rims I've seen are not conducive to good water drainage, and the caulking at
the bottom just makes things worse.