Hi! I'm new here and need help! We recently bought a new "old" home with a very old pool. I'm a life-long pool owner and I cannot figure this pool out. I have particles returning into pool after I vacuum and I can't get ahead of it. I have no idea when sand was replaced....but seems like I should start there, but don't even know what kind of filter this is and how much media I will need to replace with. Any ideas?
