I keep CS in several little plastic 2 oz mister bottles (to be handy at all 
times) as well as in former saline nasal spray bottles, sometimes for months at 
a time, and have never seen any drop out at all.
paula
-----Original Message-----
From: Jack Milliorn [mailto:[email protected]] 

Another thought on using the plastic up the nose spray bottle.  CS doesn't
do well in plastic so you need to renew the solution every couple of days.
Plastic causes the silver particles to drop out of solution making the
solution worthless.

Jack