Leak on spa spillover

[will]

We have a piece of granite on our spa spill over and a slight water intrusion has occurred on grout below the granite piece. I chiseled some out a regrouted but not sure how long it will hold (9 hours a day of water pounding on it). Just wondering if any recommendations on a strong (clear if possible) epoxy I could put on it to strengthen (it’s a very small area like a bead caulk)
thank you

 

[HermanTX]

Please show a picture of your spillover to determine if there is a way to prevent the water from pounding that area.
Also it helps to understand your situation. Also what type of grout did you use for your repairs?

I have used the landscape adhesive on some small repairs. Not sure this is right for your situation but one idea for weather resistance repairs.