Dear Learned Ones: Yes, we have the dreaded over-ten-years-old dry pipe sprinkler system throughout our museum building. We have had the annual testing done, and have already had some problems with corroded pipes and fittings causing leaks. Not catastrophic, thank goodness. However, we are now faced with the necessity of having to have the system flushed out, something that should be done every five years. This flushing has the potential to expose further weaknesses in pipes and fittings anywhere in the building. We have everything from exposed pipes to dropped ceilings to hard ceilings, so water could appear anywhere and travel anywhere. I would love to hear from people who have had their dry pipe systems flushed. Did you take the precaution of sealing your entire museum in plastic, or not? Did any part of your system fail, and if so, what were the consequences? Do you have any suggestions beyond polyethylene and Tums? Many thanks, as always, Anne Anne T Lane, Collections Manager The Charlotte Museum of History where history has a home 3500 Shamrock Drive Charlotte NC 28215 704-568-1774 X110 Fax - 704-566-1817 [log in to unmask] ========================================================= Important Subscriber Information: The Museum-L FAQ file is located at http://www.finalchapter.com/museum-l-faq/ . You may obtain detailed information about the listserv commands by sending a one line e-mail message to [log in to unmask] . The body of the message should read "help" (without the quotes). If you decide to leave Museum-L, please send a one line e-mail message to [log in to unmask] . The body of the message should read "Signoff Museum-L" (without the quotes).