Kym, I don't have an answer, but would love to learn how to repair these. I think the first time I bought a new one, >10 years ago, it was ~$125. Now they are $750! I have these things stuck on doors and metal surfaces in my lab. Years ago, I tried to disassemble one. I don't remember how far I got, but I didn't succeed. Seems like they should be repairable. Any ideas how to find someone who could do it? Start calling machines shops??? They do make an acid resistant version, SUMAXSPD, is the one that fits my chamber. It's $1,726 through Unity Lab Services. If it really lasts forever, should be worth it. There are a couple of new ones on ebay right now for $799. If I could figure out how to get reimbursed for it, I'd snap one up. Noah Noah Dephoure, Ph.D. Assistant Professor of Research Director, Advanced Biomolecular Analysis Core Sandra and Edward Meyer Cancer Center Department of Biochemistry Weill Cornell Medical College 413 East 69th Street, BRB1612 New York, NY 10021 Telephone: 646-962-6232 E-mail: <email obscured>