Hi James, I doubt if your swings are as great as mine then (4% to 84%). So I would suspect the installs do *not* have back covers on uprights. Grand damppchasers here work well *only* if a bottom cover is used and the lid is kept fully closed most of the time. The pads need to be changed 4 times per year here as well--so look into more frequent pad changes for your DC clients. For uprights so far the "record" is 1.32 cents drop at A4 after 4 years in a large Sherlock Manning. First tuning was between 50 and 146 cents pitch correction--so it was not used to concert pitch. Three tunings later the piano was missed somehow--so not tuned for 4 years. At 08:07 AM 21/01/2005 -0600, you wrote: >Hi Don, Here in the Midwest it is not uncommon for huge climate swings and >the pianos that have DC systems do a little better than those that do not >but not enough to justify the price of the system compared to a whole house >system. >Jim >James Grebe Regards, Don Rose, B.Mus., A.M.U.S., A.MUS., R.P.T. Non calor sed umor est qui nobis incommodat mailto:pianotuna@accesscomm.ca http://us.geocities.com/drpt1948/ 3004 Grant Rd. REGINA, SK, S4S 5G7 306-352-3620 or 1-888-29t-uner
This PTG archive page provided courtesy of Moy Piano Service, LLC