Hi John, It depends on what was in the extinguisher. Most will corrode strings over a period of time. The damage generally will not show up now but will in the future. I would have the university check with the insurance company and see if they will allow time to see what will happen. Many insurance companies will allow even as long as a year to see if any hidden damage show up, The minimum would be to change the bass strings. I once gave an estimate to a school for restringing a Steinway that had the same damage done. They called in another piano tech who said that there was nothing wrong and that I was just trying to get money from the school. Later the damage did show up and it was too late to have any work paid for by the insurance company, Bill Balmer,RPT Ohio Northern University and University of Findlay In a message dated 06/07/10 11:22:58 Atlantic Daylight Time, jrpiano at eastlink.ca writes: Just got a call from the university I have the contract with, someone used a fire extinguisher on 4 grands and an upright. They have been cleaned out already, but I am going to check them on Wednesday. I believe that I read on the list, that the strings should be replaced, due to the corrosive effect of the powder. Would someone please confirm, whether there is corrosive damage, that will show up, even although not apparent now? John Ross Windsor, Nova Scotia -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://ptg.org/pipermail/caut.php/attachments/20100608/65d30bde/attachment.htm>
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