> o the test done at > the lab. My TDS showed 23ppm and the lab came back with 33ppm. Each time I > sent it out it came back with a difference of 10-12ppm.
Had you calibrated the meter with the test solution? I did and it needed a lot of adjustment to get it right. I calibrated with 800ppm and 80ppm. Using 800ppm got me close to where it would read okay for 80ppm, but when I used 80 it still needed a bit more tweaking. turf -- The silver-list is a moderated forum for discussion of colloidal silver. To join or quit silver-list or silver-digest send an e-mail message to: [email protected] -or- [email protected] with the word subscribe or unsubscribe in the SUBJECT line. To post, address your message to: [email protected] List maintainer: Mike Devour <[email protected]>

