View Full Version : New unit with High TDS production

01/06/2016, 08:13 PM
I have a new 6 stage 150 gpd unit. The TDS from the membranes is reading 40- 60 after about 90seconds of run time. I have ensured that the membranes are seated completely. I'm not sure why the TDS is still so high coming out of the membrane. It is burning up my DI resin very fast still.

Buckeye Hydro
01/07/2016, 02:10 AM
What is your feed water (tap water) TDS?

How are you measuring the TDS of the RO water?


01/07/2016, 11:54 AM
TDS input is 400-500..

I am using an inline TDS meeting to measure the RO water. I have confirmed the readings with a calibrated hand helde unit as well. I typically allow the system to run 90seconds after a 60 second flush before measuring the TDS. I checked it after an hour of production and it still reads 40-50TDS

Buckeye Hydro
01/07/2016, 12:52 PM
Feel free to give us a call when you are in front of your system and we're happy to troubleshoot it with you!