I opened my 15,000 gallon, salt water, vinyl liner pool and finally after a week of shocking I can now see the bottom albeit a little cloudy. I thought I had some sort of algae on the bottom but it would not scrub off. After reading several posts here I decided to drop some vitamin C tablets and sure enough the stains disappeared. I also found a quarter ($.25) in the pool that was completely dark brown. Could this have caused this?

My water is as follows: 8FC, PH 7.2, TA 80, salt 2,500 and no CYA. I ordered Culator, ascorbic acid. Kemtek algaecide, and Kemtek metal and calcium eliminator. I have read several posts and do not which one to follow completely. I understand I need to let the chlorine and ph drop. When do I add the algaecide so it doesn't turn green again? I then add Kemtek Metal and calcium eliminator without the filters in it, then add ascorbic acid and wait for it to clear? Then I add culator? Some posts say to let the pump run 24/7 for a month? When do I put the filters back in? I am using 2 c-400 Hayward cartridge filters. Also, is the water safe to get in while I wait for the amazon order of chemicals to come in?