RODI water still has high TDS level?

[CarleyCarter]

Really, it depends on what exactly is making up that 6 TDS,,, but you don't know that. (Goal of RODI system is obviously to get to 0)

Also, I'm no expert but as someone stated earlier, you might be burning through your DI resin really fast. I get that you don't know what TDS is going INTO your DI but probably worth pulling a hose/line and getting a reading on water coming out AFTER RO stage (before DI),,, or you could buy an inline meter like someone suggested (but then you're just adding cost to what I assume was intended to be a budget system).

I will try and get a reading before DI today… thank you! I’ll look into an inline meter but as you said, trying to stay under budget! Thanks again.

 

[HBtank]

There is a good chance it is it residuals in whatever cup and/or the meter you are testing. Gotta rinse the cup (with the ro/di output) and be very careful in measuring the output.

But yeah, knowing what it is after the RO and before the DI is key.

 

[Paul B]

#Paul B don't you source your water straight from the ocean? lol

Yes, but not my top off water and I am sure mine is more than 6

Really!? I was looking into spending a lot more money but if 6 is okay… that would be fantastic. Haha!

You can spend as much as you want. But 6 is fine.

 

[CarleyCarter]

Good news everyone!!
I got the TDS level down to zero. It’s at 4ppm before the DI and 0ppm after DI. I think it was residual salt in the container I was using.

Thanks for everyone’s help!

 

[Paul B]

#Paul B don't you source your water straight from the ocean? lol

Yes, but not my top off water and I am sure mine is more than 6