Leak at spillway into spa

Oct 23, 2017
23
Houston, Texas
Our pump circulates to our spa that then flows into the pool via infinity edge. The wall behind the spa and pool contains other waterfalls and is stacked stone. The edge of the wall with the spillway has started leaking when it runs every day. I have attached picture.
The corner gets wet and algae has formed. When pump is off it dries overnight. We are in Houston area. I am hoping not to have to remove the cap on top. Could a sealer or grout along stones fix it. Not too good on repair stuff. But can try myself.

If I need to call someone who is best type of repair person to call?
 

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Show us some wider pictures of where that area is in your pool.

Trying to seal or grout the area will just trap water in the wall. The water will erode the stone as necessary to get out. You need to find the source of the water and prevent it from getting into the wall. I cannot tell from the pics you posted what teh source of the water is and how it is flowing?
 
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