Ro Water

[stefday]

Hi,

This is probably a stupid question but should ro water have nitrate in it?

I tested some before I added it and it gave a reading of 5. When I added the salt to get it to the correct salinity it went up to 10. Should this be the case as I thought it should be 0?

Thanks for any advice.

Stef.

 

[ben1987]

ideally it should be zero. Can you test your TDS?
when was the unit bought? have to ever changed anything?
maybe look at a DI chamber

 

[stefday]

I buy my ro from a lfs.

 

[steelhealr]

There should be no nitrates in RO water. Does your unit have a DI unit with it? SH

 

[seffieuk]

To be honest its the norm to buy water from a lfs and find Nitrate thats why most of us buy a RO unit

Seffie x

 

[Truck]

I wouldn't rely on a liquid test kit to give you a reading, you're better off with a TDS meter as ben stated.

 

[stefday]

Thanks for the replies.

Do seem to be having a constant battle with increasing nitrates (see thread on nitrate reactors) and falling pH at the moment.

Both seemed to be stable for some time with nitrates 0-10 and pH at 8.1-8.2 but now nitrates are 20-50 and ph 7.9-8.0

Not really sure as to the reasons why as I have not changed anything.

 

[ben1987]

best to get your own RO unit so you can eliminate this from your battle

 

[stefday]

Thanks Ben.

I have e-mailed osmatics for some prices this evening.

I think I will invest in a unit as this will give me more control over the quality and probably pay for itself in time.

Stef.

 

[steelhealr]

IF you are investing in an RO/DI unit, I would tell you to go the extra distance and buy a TDS meter. All RO owners should have one. SH