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.