My husband and I bought an intex ultra frame 14 pool (3861 gallons) and at first we were treating it with baquacil but after some research we decided to upgrade to a sand filter and saltwater filter to help better maintain it. Let me apologize if this has already been discussed...there are many posts here and I am a bit overwhelmed. I have 3 young kids so it is hard for me to get out there and mess with the pool chemicals without knowing exactly what I need to do and trying to read through all of the posts in hopes of finding the right one to help me in tough. The pool sat unused for days because of rainstorms we had before I was able to start using the SW system. After adding close to 3 40 lb bags of salt I let the sand filter filter the pool for 24 hrs and then ran the salt water. All was good though I noticed a slight green tint the next day. I cleaned the pool today and looked at the SW system and seen what looks like icky stuff inside the system...I think it is the same stuff which was floating in the pool. What is it? I'm afraid it is going back into the pool and that is not good. My husband usually deals with all the pool stuff but he is away for awhile due to work so it's up to me and I am at a loss as to what I am to be doing.