Container distilled water = 2ppm
From dryer = 10ppm
Fridge filter = 70ppm
PUR filter = 212ppm
Tap = 268ppm
I make my own washing detergent so I know those 10ppm from the dryer are safe.
Bonus of buying the meter is that I can test my colloidal silver for ppm. Current batch 15ppm! Woo hoo. 15ppm CS can run around $10 an ounce. My whole rig (including 2 one ounce silver coins) cost around $50. I've made about 5 gallons so far and only had to buy a new supply of 9 volts once. I reckon the coins will last me lifetime.
For those interested here are some pics of my colloidal silver rig. The only thing missing from these images is the aquarium bubbler I use to keep the water moving during electrolysis. Take note of the line on the silver coins. The water NEVER should be close enough to the alligator clips where the aluminum or steel would be affected by the electrolysis. Click for larger images.
Clean everything with 100% isopropyl or Ever Clear before and after use.
“So I bought a little TDS (Total Dissolved Solids) meter to check it.”
I wonder if that’s the same kind of meter that came with our under-the-sink reverse osmosis system. Probably is. I never though to check my colloidal silver with it. I have one of those ready-made Silver Edge generators. It’s paid for itself in 20 or so years, though.
I need to get on this thread more. Thanks for posting how to make CS.