An extractor,or dump some cleaner in a bucket with some water and use only the foam off the top with a washmitt.I could tell you the rest of my secrets but that only comes from many years of trial and error.Good luck.
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RIP Chester P.Anderson Jr.9/23/05 I love you dad,and miss you very much.
RIP Kevin"Slo SI" 9/13/06,we will miss you homie,time heals wounds but you will never be forgotten