Anyone have any thoughts as to why my ADSL filters have a life of around 2 weeks before they have to replaced(cannot connect to internet and use phone at the same time/noises on phone line).
cheers for any ideas-this is becoming expensive!

Have you had your phone and ADSL modem checked for excessive current/voltage? The Filter will only fail if either the phone line is providing too much current and voltage or the ADSL modem is drawing too much.