We have an inground pool with 2 cracks going down the sides. The pool has a leak or leaks. We discovered the leak because it was loosing water at a much faster rate than normal. It was more than evaporation. After speaking to a professional, my husband who usually fixes everything decided to break open the concrete to see if the dirt around the plumbing was wet. It wasn't, we did notice that the water stopped going down right below the light, so he kept on digging. He found a leak right behind the light, and patched it with that epoxy putty stuff that we bought at the pool store. Its two tubes. Then he filled the pool and again, we lost more water. We were devastated. He thinks its those 2 cracks now. Yesterday a professional came over to look at it and gave my husband 3 options. One included breaking the plaster around the cracks amd fixing it which would cost 2500! Wow, is that normal? That is very expensive! Another involves rubbing candle wax in the cracks. Apparently it is a trick of the trade. My husband, who is now desperate and wants to let his family enjoy the pool this summer did it. Then he filled up the pool (it was only half way filled). This is supposed to hold for a few months. Has anybody ever heard of this? Will the excess wax floating around the pool ruin the filter if we run it? Also, would it be smart to just let the water sit for 24 hours and mark it to see how far down it goes? Please give me any steps you may know on how to identify the problem.