This is the third one to do so in the past three years....both my silva ones got a bubble and the last one no longer points North.
My kit usually last me forever, I'm not careless or harsh on it, but I have*no*luck with compasses. Now I'm wondering, is there anything in my bag that I really ought not to keep my compass next to? Is there anything that might de-magnetise it? Similarly, will the compass affect my bank cards?
Just wondering....
Cheers,
Toddy
I knew I read this somewhere ( backpacker mag, ask the experts):
Compass Bubbles
Q.} What causesand how do you preventair bubbles from showing up in liquid filled compasses? Just about every liquid filled compass I have used usually gets a small air bubble in it.
Submitted by:
A.} First off, Mark, never fear: a small bubble in your compass will not affect its accuracy. Bubbles can form from high elevation or exposure to cold temperatures, which cause the liquid to contract, leaving an air bubble behind. Usually, the bubble will disappear when the compass is returned to sea level and/or room temperature. If it doesn't, place it in a warm spot-like a sunny windowsill-so the liquid can heat, expand, and return to it's normal volume.
Hope this helps you out!