I recently bought a Silver Puppy and a Pocket Puppy. On the Silver Puppy there are two switches. The one on the left is the Polarity switch, (The label shows arrows that indicate SWAP or DC mode) if the switch is in the up position then your running it in DC mode in which the light stays green. If you switch it to SWAP mode then it will change from red to green. According to my instructions running it in SWAP mode prevents deposit build up. If you run it in DC mode it says you can clean the wires when deposit build up becomes apparent. I had questions so i e-mailed odecoyo...@windstream.net and he was really great about troubleshooting with me. Hope this was helpful, if not please be kind I'm new here. Tina
--- On Sat, 2/13/10, orv delany <orv.del...@comcast.net> wrote: From: orv delany <orv.del...@comcast.net> Subject: CS>using silverpuppy question To: silver-list@eskimo.com Date: Saturday, February 13, 2010, 9:24 PM I recieved the silverpuppy today and put in distilled water thats been prepared with activated charcoal, reverse osmosis, de-ionzation, steam distilled plus micro filtration sodium free, mineral content less than 1 ppm ozone protected , cleaned mason jar 32 oz with distilled water and turned on to auto mode and DC . green light came on and its been on almost 12 hr. and hasen't gone off yet. anyone know what is happening ? even a guess. Help thank you orv delany in portland or.