Flytrap Store Greenhouse South

TDS (Total Dissolved Solids) of several water sources
- Tapwater -- 227 (enough to kill a Venus Flytrap in a few weeks)
- Reverse Osmosis under sink unit -- 26
- Collected Rainwater -- 6 (includes small amount of soluble material from rooftop and sides of tank)
(Anyone else with a TDS meter care to add their data to this discussion?)
Steve