Humidity difference?


On 3/11/2019 7:52 PM, Roy B. wrote:
Dan:
For some reason the O-Rings on my South African glider get really dry & stiff. We use a very light coat of silicone "plumbers grease" on the probe about twice a year to fix that (petroleum based grease attacks the O-Ring). My US glider in Massachusetts doesn't have the problem.
ROY

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Dan, 5J