Does it matter if you insert the PWT meter right into the CS that you 
eventually will end up drinking or is it better to pour some off into another 
container and use that for the PWT measurement? The PWT is a conductivity 
meter, right? So that means that it sends a small electrical current into the 
water to see how well it travels through the water? Will that cause any kind of 
reaction with the CS or is it negligible?

Richard Sobe