American leak detection just discovered three leaks in my spa. They are all hairline cracks ranging between 6 inches to 12 inches running horizontally about an inch below the lip of the seat. It's a Gunite pool with pebble Tec and I'm wondering if I use a repair epoxy (a plus b putty) will it permeate deep enough through the pebble tec to seal the underlying leak in the gunnite shell. What I want to avoid is paying ALD $1200 which they quoted me. They mentioned a more liquid repair material which would be sucked through the entirety of the leak and seal it throughout.
What at should I do?