Hi Wally, A 100% wool string cover with dampp-chasers (and humidistat) does a really nice job keeping the strings and pins rust-free. I prefer high power rods under the sound board (and humidistat) with a string cover over the plate and strings. I just returned from a "service trip" to Trinidad where Dampp- Chasers and string covers are keeping pianos in superb conditions. You know it works when you open the door and the ocean is right there! Other pianos in the same situation without Dampp-Chasers and string covers are "rusted shut". Thanks, Steve Cunningham The Piano Co. Schimmel & Bosendorfer North America Service Center -1-800-726-9109 Piano Climate Control Supply Dampp-Chaser Distributor, Protek Lubricants 1-800-443-7509
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