Question: I service a Ballet Company with numerous studios. The floors are mopped nearly every night and the heat is high during classes. Will a damp-chaser have any hope in those conditions? David I. ----- Original Message ----- From: "jolly roger" <baldyam@sk.sympatico.ca> To: <pianotech@ptg.org> Sent: Monday, January 15, 2001 7:27 AM Subject: Re: Re: Piano Warrenty/False Beats > At 11:16 PM 1/14/01 -0600, you wrote: > >>120 watts. Humidistat (regular calibration - turn on & off around 65% RH). > >>No humidifier. > >> > >>The DC system will only help to minimize shrinking & swelling of the bridge > >>& cap. I don't think the DC system caused any problem. I think it is a > >>materials and/or workmanship defect. > >> > >>Terry Farrell > > > Hi Terry, > DC systems do a great job of stabalizing the board and rim > structure. I don't think they make any difference to the bridge and > action. The moisture is concentrated only at the bottom of the board. We > have installed them on all of our University grands, and gained some > improvement in tuning stability, but no improvement in other areas. Hammers > still go mellow in the spring. Vertical installation is another story, they > are very effective. In winter I can place a digital humidity gauge on the > beam and read about 35% , place it on the plate and it will bottom out at 10%. > Yes 10%, a steam heated building for a music dept. Now I can not think of a > worst enviroment for musical instruments. Summer time it averages 50-60% > with AC runing. Some spikes of 75% on a rainy day. > The performance pianos have water proof tarps fitted to the floor, there > seems to be a bigger improvement in overall stability. FWIW. > Just my 2c > Tap and CA the pins and move on. I doubt you will get any relief from the mfg. > Roger > >
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