- Messages
- 2,868
- Location
- Wiltshire UK
Hi all,
If you can set your TDS meter to conductivity? I would. If you can't, you need to find the conversion factor (may be called "cell constant"). It is likely to be 0.64, but it could be 0.5 (100 micros ~ 50 ppm TDS) if the major salt is likely to be NaCl.
cheers Darrel
The quoted conductivity values are nearly always microS/cm, so if just see 80 microS, it means 80 microS/cm.So i want a TDS of approx 25 - or 3 part RO water and 1 part tap (our tap is around 100 TDS). Then use leaves to lower the ph. How do people measure in units of microS ?
TDS is linear, so If you're confident in that your tap is TDS 100 and your RO is near zero, you can accurately predict the result of mixing the two.
Perfect, as @Ben Rhau says it should be a linear scale, I'd start with 10:1 RO:tap, you can always add more tap, but you can't take it away.I know my tap is TDS 100 +/- 10
If you can set your TDS meter to conductivity? I would. If you can't, you need to find the conversion factor (may be called "cell constant"). It is likely to be 0.64, but it could be 0.5 (100 micros ~ 50 ppm TDS) if the major salt is likely to be NaCl.
cheers Darrel