[Rockhounds] Ice question ?

[DonH]

J. R. Hodel wrote:

>But if the Tritium-based heavy water is highly radioactive with a short half-life


Hi,

The half-life is tritium is about 12 years.  I don't know how much 
tritium is in a sight package, but you can check with the manufacturer 
on recommended replacement cycles.

I do know people who have replaced them after some amount of time in use.

Best,
Don