Collette, "Riding the probes" What a marvelous description for a fairly common problem. As to decision time - After the May News Letter. Probably more explanation is in order. I used the words "more effective pads over a longer period of time" . The " longer period of time" part of this statement is by far the most important. The humidifier, be it vertical or grand has tremendous water evaporation capability. Our tests have shown that even in the final days of being operational, the pads wick reasonably. When the top dries out, then they are dead and there is very little moisture coming off. The answer then is to keep them wet; don't let them dry out. Making it easier to wick to the top helps in this effort. Because of the moisture distribution baffle on a grand humidifier is so close to the pads, considerable condensation forms on the baffle and then drips back onto the pads. This and the ease of wicking out of a grand tank tend to keep the pads wet and make these pads last longer. The grand differs from the vertical in this regard as the vertical moisture distribution baffle is substantially above the humidifier tank. There is less moisture condensing on it and more going into the soundboard. One more stop and then I'll quit. The grand humidifier hanger brackets were recently lengthened so that a greater air flow between pads and baffle would provide for a greater flow of high moisture air outward to the soundboard and less going straight up to condense on the sound board. On the theory that every little bit helps, we have taken a step to increase the effectiveness of the grand humidifier and are now proposing to do something that will make the vertical pads last longer. David - Thanks for the opportunity to go further with this. Sincerely, Bob Mair,
This PTG archive page provided courtesy of Moy Piano Service, LLC