2nd the bucket test. Right now is brutal here in FL. No rain. High UV. Some wind. I'm adding water 2x a week ... a lot of water. I would swear I have a leak if not for the bucket test passing. You could have a leak, or not. Bucket test. Additionally, you can measure the water surface drop from a fixed point - and see if it does less than 1/8", less than 1/4". less than 1/2" per 24 hours and share results IN ADDITION to bucket test.
Side-note: Even though you may end up deciding to escalate this to the authorities (Division of consumer services or [SIZE=-1]Department of Business and Professional Regulation or whatever) you may be best protected and prepared to see an attorney that gives free/reasonable price consultations first.
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Thank you for your post! There was definitely a leak and a diver came out to diagnose, finding the leak around the pool light. The pool is now holding water fine since the repair on Saturday. So one problem solved.
The contractor is once again communicating, just being sarcastic and an overall jerk. But at least we're in negotiations. He keeps saying "there is nothing structurally wrong." Which I have no reason to believe there is anything structurally wrong. My complaints are with the poor finish work--all aesthetic. So we'll see where it goes this week.
Thanks again!