You can add another di cartridge if you like to get your 13 even lower,Im on city water and 60 Tds in and zero out,I have basically the same unit as you,I change filters every 2 months.Use the TDs Meter to tell you when to change them I would think about adding another Di to get that zero closer.

 

IN: 150ppm
OUT: 3ppm

 

200 in 0 out.


Tim

 

this is a 5 stage unit with what looks like 2 DI resin chambers on the top... I should go ahead and change those out you think?

 

I cant see the top in the pic are you sure its 2 dis already?

 

You can add another di cartridge if you like to get your 13 even lower,Im on city water and 60 Tds in and zero out,I have basically the same unit as you,I change filters every 2 months.Use the TDs Meter to tell you when to change them I would think about adding another Di to get that zero closer.

Ditto, iv got 342 TDS, going in & 000 TDS, comming out, & i use a in line TDS Meter, it it's a good idea to get a back flush valve kit for your R/O membrain, it will last alot longer,
Brent.

 

it it's a good idea to get a back flush valve kit for your R/O membrain, it will last alot longer,
Brent.

What is a back flush valve, and should you use one every time you use your RO/DI?

 

What is a back flush valve, and should you use one every time you use your RO/DI?

It is a valve that reverses the water and flushes the membrane suppose to make it last longer I use mine maybe once a month.

 

It is a valve that reverses the water and flushes the membrane suppose to make it last longer I use mine maybe once a month.

Sorry, i had a phone call, Casey, covered it!
Brent.

 

here is a link to the unit I have,
http://cgi.ebay.com/RO6102DINT-Aquarium-2-Reef-110GPD-RO-2DI-water-system_W0QQitemZ7744083826QQcategoryZ46310QQtcZphotoQQcmdZViewItem

looks like to DI resin chambers and the flush valve, im gonna go try flushing the system now and see what happens. Also gonna order some more DI resin. thanks for the input!

 

While it was flushing I had my TDS meter turned on and even though there is no filtered water being made, it is still showing TDS of 29... does this mean the unit wasnt calibrated right? Sorry still new to the whole tds meter thing.... here is a pic of the one I have...

 

Well the fiters tell alot, They are getting dirty pretty fast and look like algae, Your well water is rough, That is very high TDS readings going in. The % thing is for ro water only, They say 10 % coming out of the RO of thet what is going in, I don't buy that,but thats what the makers say. But for DI water it needs to be 0 TDS coming out. not to say a few ppm is bad , better then what You are starting out with. I change my pre filter, carbon and DI every three months. To keep them down to 0

 

It would be a good idea to do a complete water test on what kind of water you are sending to your unit, Do a test straight from your tap! { phosphate, Nitrite, Nitrate, Ammionia, Alakalinity, PH, Ect, then you have somthing to go by,, before you test ya need a baseline, are you will not figure it out, some well's proudce alot of oxygen, that will deplete the DI cartridge rapidly, Call ask for Scott , http://www.spectrapure.com/
Brent.
Been there Done that! :freak:

 

Just checked my TDS going in and its 27 PPM. Coming out was 3 PPM. Only just set up my RO 4 stage Unit today.


Looks like your values are high. I guess thats bad. Looks like our scottish water is mint clean. Ill let the unit run and keep draining as required. I would guess we are aiming for 0 PPM on the outlet. As long as the phosphate is out. Im happy.

 

And guess what.

Perfect 0 PPM for Phospahte )))))))))))))))))))) on the RO unit produced.



Should I happy ??

 

And guess what.

Perfect 0 PPM for Phospahte )))))))))))))))))))) on the RO unit produced.

Should I happy ??

Cool!!! do the Banana! Dance!!!:banana: :beer:
Brent.

 

I have the same unit as you and i am also having problems...
i have that tds meter comes in at 260 out at 0

but I am burning through di resin like you wouldn't belive. :angry:

 

I have the same unit as you and i am also having problems...
i have that tds meter comes in at 260 out at 0

but I am burning through di resin like you wouldn't belive. :angry:

Dont feel alone, i have to change out mine every 1 1/2 to 2 months :angry:
Brent.

 

I'd say the incoming water is extremely potent in heavy metals and nitrates, phosphates and such if you're not gettin < 3ppm.

My water going in is roughly 200 and coming out is 0. It's higher, though, coming out when I replace the DI resin or the carbon filters. Just a thought

 

that is far more often/ expensive than i had hoped LOL
dang central il water

 

that is far more often/ expensive than i had hoped LOL
dang central il water

I hear ya!
Brent.

 

Man, this thread went almost a year without a post! But if anyone cares, my input is around 250 and output between 0-7, depending on how fresh my DI resin is.

 

and to the EMX002 post.


this post was searched by me from tds readings.


What do you say about my 2 posts ???? please Im live in the UK. Scotland ...