High TDS with puratek

[sksouthpaw]

Hey all, looking for insight. This is my first RODI system. I bought an aquamaxx puratek deluxe 100g/d rodi system and finally just had it installed. Followed the flushing protocol for setting up, but still getting a 6 tds on the inckuded meter. Any idea what could be causing this?
Thanks

 

[Gtinnel]

I'm not familiar with that specific filter, but where are you getting a tds of 6? Is that after the membrane, or after the DI?

 

[sksouthpaw]

The tdi meter looks like its attaching at the product water line out, so after all filtration

 

[Salty2021]

Your fine with that tds..

 

[Gtinnel]

Your fine with that tds..

Many people including myself will disagree with you on this.

 

[Gtinnel]

I saw the probe plugged in after the di, but I wasn't sure if there was a probe after the membrane also. If your final output water is that high then it could be your di is depleted (it looks new though) or it could be not packed properly and allowing channeling. If the membrane is old then it may be allowing the water coming out of product side to have a higher than wanted tds.
Honestly also knowing the tds of your tap water, and the tds after the membrane is the only way to tell for a fact if you filter is working properly.

 

[sksouthpaw]

I saw the probe plugged in after the di, but I wasn't sure if there was a probe after the membrane also. If your final output water is that high then it could be your di is depleted (it looks new though) or it could be not packed properly and allowing channeling. If the membrane is old then it may be allowing the water coming out of product side to have a higher than wanted tds.
Honestly also knowing the tds of your tap water, and the tds after the membrane is the only way to tell for a fact if you filter is working properly.

Got it, to my knowledge there is only one probe. But yes brand new system so I thought it was a bit strange. Guess I will have to get another tds sensor. Im not sure of my tap but when I was running for the 30 minute interval prior to adding in the DI per instructions, the tds started around 48 then continued to go down but dont quite recall what it was at when I added in the DI