I'm trying to troubleshoot a leaking pool issue with the advice provided in this forum. I'm at the stage where I need to do the bucket test and block all the ports to the pool to see if the water level continues to drop faster than evaporation. I can't figure out how to stop the main drain, however. I do have a separate pipe and valve at the equipment pad, but can't see how to plug the main drain in the pool to ensure there's no leak in that part of the plumbing? We just bought the house and I don't seem to have anything in the equipment shed that looks like it would cover the drain.
Thanks in advance, I've been soaking up all the advice in this forum, adopting BBB and so far have effectively SLAM'd my pool and gone from green to clean!