anyone good with RO/DI unit?

[lcf425]

I need some help with the RO/Di unit i got from gary, and recently i notice my tds is 28 anyone have any idea what i should do?

[tunicate]

Some pictures would help.

[desideria]

anything leaking? change the resin? how long have you had it for??

[lcf425]

No leaking ... Change resin a week ago... Had it less then 6month

[CFOh]

No leaking ... Change resin a week ago... Had it less then 6month

Hi, what is your TDS baseline? is it shifted? Or recently just start measured @ 28ppm? Probably verify with DI water from others.. Sometime, could be TDS pen itself... Cheers..

[lcf425]

er what do you mean by TDS baseline? just recently measure 28ppm

[CFOh]

er what do you mean by TDS baseline? just recently measure 28ppm

What is your previous TDS measured value?

[lcf425]

its been zero all along either way i think it went up due to me changing the carbon stage =.= thanks all for the help

[mopiko]

why not give him a call to enquire?

[sunny03]

carbon should be place on the first stage .... follow by resin...