ive got some felt filter socks of various sizes, 100 and 200 micron. they feel like the regular coralife purflo micron, felt im assuming. ive saved my last couple and was wondering if it is even worth washing them. til now ive been throwing them out. if you wash or reuse them how do i go about doing this. i remember seeing a thread about washing them in vinegar but i cant find it. thank you