Ok, so I heard people throw their filter socks in the washer so I tried it. I didn't run any soap or detergent. I even ran it dry to be sure. So I put them in on hot, and they came out smelling like detergent!!! I ran it two more times, but it still smells like laundry soap. Do I have to get rid of these socks, or is there something I can do to make them safe to put in my tank?