There is a overflow contained by the upper ring of my pool. I cannot locate it. Any suggestions finding it?
Answers: Use a soapy water solution. If you see bubbles, you have found your percolate.
Now for the downside. I had a leak surrounded by mine last year. I found the leak glibly. I tried 4 different types of patch, but none of them worked. I hope you have better luck than I did.