Ned, Welcome to The Forum!

Please take a look at the first sticky in the In-ground Construction and Repair section. Then tell me a little more about your patch kits and also the proximity of the rip (possible seam failure, which would be under a warranty) to the drain face plate. Also, do you have access to SCUBA gear and the knowledge to safely use it?

I wish you well with this issue and will check every day or 2 to see if you need further advice.