How to test r/o water

[Coral reefer]

How do you test r/o water to know if your filter is doing a good job? Do you measure tds (total dissolved solids) in ppmparts per million before and after? How many ppm is good to have left?

 

[GreshamH]

Should read zero TDS on the output. When mine reads anything I know it's time to change my DI.

Question is, are you running a DI? IF not what i said does not apply as you will NOT get 0 TDS from RO alone in our area.

 

[sfboarders]

Get a TDS meter. 0ppm is what you want. I get 1ppm at my RO and 0pm after my DI.

 

[GreshamH]

Get a TDS meter. 0ppm is what you want. I get 1ppm at my RO and 0pm after my DI.

Only *if* he has DI. If no DI, 0 TDS is not going to happen

 

[Coral reefer]

I am not currently running di, so that's what I was wondering. 1ppm with just r/o?

 

[GreshamH]

It depends on the source water. You may never be able to get down to 1ppm with just RO.

 

[sfboarders]

The closer to 0 the better.

 

[sfboarders]

Get a TDS meter. 0ppm is what you want. I get 1ppm at my RO and 0pm after my DI.

Only *if* he has DI. If no DI, 0 TDS is not going to happen

I'm getting 0 after RO.

Attached files /attachments/sites/default/files/IMG_3278.JPG

 

[GreshamH]

Either your source water has really low TDS to start with or you're getting a false reading as RO can not filter everything out. Your source must be low in silica

 

[Coral reefer]

Do we (bar) have a ppm standard? My tds meter reads 0, but it isonly capable of o or 10, not by every one