> unless of course whilst awaiting a clear road you take a moment to chat up > the maid in the concessions stand and let someone else's boiler run dry. Harry, This is the only acceptable reason for letting a boiler run run dry! To do it with some else's boiler.............panache!! Barrie MODEL ENGINEERING DISCUSSION LIST. To UNSUBSCRIBE from this list, send a blank email to, modeleng-request@xxxxxxxxxxxxx with the word "unsubscribe" in the subject line.