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Old 18th May 2022, 4:36 pm   #2
Join Date: Jan 2016
Location: Stafford, Staffs. UK.
Posts: 1,915
Default Re: Coughtrie Lamps Question.

I don't know for sure. But will say, that it's quite likely that water will sit in the threads because of gravity, and changes in pressure caused by either barometric pressure or temperature (including temperature caused by the lamp inside) are quite likely to end up sucking that water in. If there's some kind of venting elsewhere probably less chance. But water has a really nasty habit of getting past seals when gravity is on it's side.
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