latchdan Posted October 22, 2020 Report Share Posted October 22, 2020 I'm starting a CRS tank and I just added di to my ro setup I'm getting 0 tds. I've added 2.35g of ss to 5 gallons of water and getting 5 gh but tds is 91ppm. (Mixed a couple hours with power head)This doesn't seem right. It's a new test kit so not expired. I re calibrated the tds meter recently with 342ppm calibration solution. Does this sound right? Was expecting something around 130ppm from what I've read. Quote Link to comment Share on other sites More sharing options...
latchdan Posted October 25, 2020 Author Report Share Posted October 25, 2020 So I ordered another tds meter getting same reading Quote Link to comment Share on other sites More sharing options...
rhoagland Posted October 30, 2020 Report Share Posted October 30, 2020 That sounds right to me. SS GH+ is about 18 tds per GH. Quote Link to comment Share on other sites More sharing options...
pastu Posted January 24, 2021 Report Share Posted January 24, 2021 Sounds right to me Quote Link to comment Share on other sites More sharing options...
pucksr Posted February 9, 2021 Report Share Posted February 9, 2021 Are you reading the box and trying to hit the same numbers? I don't have salty shrimp, but Dennerle doesn't list the numbers in "TDS", they list them in micro-Siemens.TDS is actually a bit of a mess, because there are a couple of different scales for TDS, which produce different numbers. The reason Dennerle uses micro-siemens is because that is a "non-calculated" value, so scale doesn't matter. Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.