Hi I have a 16 x 32 inground pool with a liner. The pool wasn't opened for 7 years we opened the pool 3 weeks ago and it took 3 weeks but we got it sparkling clear. The problem I'm having is the pool smells weird kinda like bleach mixed with grass clippings that sat in a can for weeks maybe even a fishy smell. What can this be? I just shocked it and I'm going to take a sample to the pool store tomorrow to be tested. Has anyone ever had a smell like this? Also there are stains in the liner they are brown I tried scrubbing but they won't come out. Is there anything I can do for this?