William, Terry and all, >In case you are considering PVC for the ducting, I'd do some research. PVC >is more prone to buildup of static charges, more difficult to ground and, >consequently, fire hazard increases. I dunno how much, and I know a couple >guys that use PVC and haven't had any issues, but it may be worth >researching if that is your bent. > >Just my 2 cents. >William R. Monroe Good comment William. The use of PVC is OK provided that a proper earthing network is installed. A spiral wrap of earth wire (without insulation) along each runner, properly grounded, will prevent the generation of potentially explosive static voltages. Ron O. -- OVERS PIANOS - SYDNEY Grand Piano Manufacturers _______________________ Web http://overspianos.com.au mailto:ron at overspianos.com.au _______________________
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