Found existing epoxy patch (in/around) (skimmer throat). Epoxy patches are an indication of previous leaks that could open up in the future as the patch wears away, initiating further water loss. Recommend proper repair.
When specialist arrived on site. Air bubbles were exiting pool side. Specialist recommends consulting your pool service provider to service jandy/ pump to make sure all seals are good and tight. Air is entering through either pump or jandy valves. Result solar panels are allowing air to enter system. When off no bubbles.