I have figured out thankd to this awesome forum where my leak is, but have no idea how to fix it.
This setup has a knob on the stair "ledge" that dictates how much bubbling you get coming out of the jet. The problem is it never worked right. Now, the leak is steady. I think the air tube is the issue. Is there an easy way to fix this without tearing up the concrete. We can do without the bubbles. ..
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