Tds change after playing with ato?

[Notsolostfish]

I filled my ro chamber this morning with 0 tds water. After i put my hand in there to adjust the ato pump. My tds went to 7ppm is that normal or should i be worried?

 

[Rtaylor]

It may be salt residue or something in the chamber not necessarily your hand (although that could be it too). I wouldn’t worry about 7 tds personally.

 

[Glenner’sreef]

So your ato reservoir is only fresh water yes? Could it have been month old water (for instance) that already had tds?

 

[GoVols]

So your ato reservoir is only fresh water yes? Could it have been month old water (for instance) that already had tds?

Or some build up within the ATO pump before the pump was disturbed.

 

[Notsolostfish]

So your ato reservoir is only fresh water yes? Could it have been month old water (for instance) that already had tds?

Or some build up within the ATO pump before the pump was disturbed.

So i filled the RO chamber. It was 0. Put the tunze in pump. Still 0. Put my hand to adjust the pump boom 7. Is that an issue im kinda worried?

 

[GoVols]

So i filled the RO chamber. It was 0. Put the tunze in pump. Still 0. Put my hand to adjust the pump boom 7. Is that an issue im kinda worried?

How large is your ro chamber to the size of your reef?

 

[Notsolostfish]

How large is your ro chamber to the size of your reef?

I believe its 3 gallons if im not mistaken

 

[GoVols]

I believe its 3 gallons if im not mistaken

Okay, how many gallons is your reef tank?

 

[Glenner’sreef]

Are you using a handheld tds meter? Was it cleaned with distilled water after last use? Could easily alter reading.

 

[Notsolostfish]

Are you using a handheld tds meter? Was it cleaned with distilled water after last use? Could easily alter reading.

Yes cleaned and still 7 is that really a big issue?

 

[Notsolostfish]

Okay, how many gallons is your reef tank?

36

 

[Glenner’sreef]

So the bottom most bottom line in successful reefing is “zero”. I’d change out my cartridges, test and be done with it. If it goes back to zero then you know the your tds meter is good.

 

[Notsolostfish]

So the bottom most bottom line in successful reefing is “zero”. I’d change out my cartridges, test and be done with it. If it goes back to zero then you know the your tds meter is good.

Like i said my cartidges are new 1 week old. I tested my tds before i filled and after it was 0. Its just after i put my hand

 

[Glenner’sreef]

Wondering if you stirred something up that settled to the bottom and after adding zero tds water and adjusting pump that was in the water, you retested water to find maybe “metals” that had earlier settled?????

 

[Notsolostfish]

Wondering if you stirred something up that settled to the bottom and after adding zero tds water and adjusting pump that was in the water, you retested water to find maybe “metals” that had earlier settled?????

Is that an issue?

 

[Glenner’sreef]

Is that an issue?

Not sure but it could be why you have 7 tds. Or you have a bad tds meter, I don’t believe you can calibrate those?

 

[Rtaylor]

7 tds is not an issue. Don’t worry about it.

 

[edd59]

RO/DI water is only 0 tds out of your unit, once it hits a brute pail or your hands it most likely is not 0 anymore. but nothing to be concerned with

 

[GoVols]

36

You’re fine. That’s just over ten times over your ro chamber.

Those hand held meters used to be finicky in the past.

If you have (or tie in) a good TDS meter on your ro/di unit, after the di stages is the best way to go.