tnx all for responding. the rig is on the way .needed to know where to start. one last question.the best way to clean em using household cleaners? tns bob Listserver Subscription:listserv at listserv.tempe.gov - "subscribe heath 'name' 'call'" Listserver Submissions: heath at listserv.tempe.gov Listserver Unsubscribe: listserv at listserv.tempe.gov - -"signoff heath"