BRS RODI unit question

[gthirty7s]

Hey guys so yesterday i hooked up my rodi unit from BRS
flushed the system for 1 hour just like it said in the manual
turned it on and it shows 0 TDS in 0 TDS out is that possible?

i live in New York and im not sure if the water quality is so good here
just wandering if its possible for the unit to read 0 in 0 out.

 

[AquaRick]

Sounds strange. I know I have good water and mine shows 3 TDS in, and 0 out. But in NY, i would expect it to be higher than 0. Mine usually starts at 0 and creeps up a bit. Did you wait a minute or two to make sure the TDS didn't increase?

 

[melosu58]

I guess anything is possible. Working for a large water municipality my self I would say not. I know not all are the same but there is most certain nitrates, ammonia and heavy metals in there. I cant imagine it being 0 going in.

 

[gthirty7s]

Sounds strange. I know I have good water and mine shows 3 TDS in, and 0 out. But in NY, i would expect it to be higher than 0. Mine usually starts at 0 and creeps up a bit. Did you wait a minute or two to make sure the TDS didn't increase?

i ran the flush for 1 hour then i made some water for about 40 minutes to top off the aquarium it would show 001 in and 000 out for a few seconds then 000 in 000 out.

 

[AquaRick]

You can always buy a TDS pen\meter and get a 2nd check.

 

[gthirty7s]

You can always buy a TDS pen\meter and get a 2nd check.

I connected the rodi unit in my bathroom sink today
Flushed the unit for about 1 min turned to make rodi
Water in was 014 out was 000 the within 30 seconds
In was 000 and out was 000

So what do you guys think normal?

 

[AquaRick]

Could be, but I'd see if any reef club around you has a TDS pen then can loan you. If you still think the readouts are a bit fishy, best to double check. Or you could buy the pen yourself. Think it's less than $10.