reverse osmosis

[StirCrazy]

hehe I am no doctor, but I know when we make water on the ship it is pure water and if your not used to it you get the SH*** if ya know what I mean hehe

Steve

[Samw]

Thanks for the details Andrew. Have you measured the TDS of your carbon filtered water? I am interested to see how effective the carbon filter is.

I know what you mean about saving the good stuff for your fish. I started buying RO water and only for my fish. I still drink only Brita carbon filtered water.

I read your bad news and hope that things will turn around soon. I can guess what it must be like. My brother is in the same boat.

[naesco]

I have a Spectapure RO/DI system manufactured in Arizona.
In looking to buy some replacement filters I happened to search the FAQ on their website.
I am not a technical person but the answer to the question of whether DI in needed in the Vancouver watershed was no because of low PH water.
Based on that FAQ I continue to use RO and have discontinued the DI.
IMO Spectapure manufactures the stuff so if they say no, I believe them.
Any comments?

[canadawest]

<UL TYPE=SQUARE><LI>Water straight from the tap: 17ppm
<LI>Water from the fridge dispenser (carbon filtered): 17ppm
<LI>Water from my Reefpure Tornado (4 stage RO/DI): 0ppm[/list]
I suspect that removing the chlorine doesn't really change the TDS of the water as it's likely the phosphates (which test at 2-2.5ppm in my tap water) and other metals or minerals that keep the reading at 17.

All I know is it tastes better and is odourless out of the fridge, compared to a glass of straight tap water. (Works the same as Brita filtered water)

[Samw]

<BLOCKQUOTE><font size="1" face="Verdana, Helvetica, sans-serif">quote:</font><HR>Originally posted by canadawest:
[QB]<UL TYPE=SQUARE><LI>Water straight from the tap: 17ppm
<LI>Water from the fridge dispenser (carbon filtered): 17ppm
<LI>Water from my Reefpure Tornado (4 stage RO/DI): 0ppm[/list]<HR></BLOCKQUOTE>

That's very interesting. What about the RO Water from Safeway? Have you ever tested it? It should be 0 ppm I'd imagine.

[ 05 December 2001: Message edited by: Sam W ]

[DJ88]

Sam,

The problem with the store bougth stuff to me is that you don't knwo how often they change the mambrane and filters on the systems. Sigh.. otherwise it is a great source of H2O

[canadawest]

Actually I was curious of the TDS reading of the Safeway RO water as well, but I got my TDS meter after I got my RO/DI unit, so I didn't have any Safeway RO water left around to test.

I would suspect that it would be low, but probably not 0. And like Darren mentioned, you have no idea how old the membranes are on those things. The water could actually have higher TDS readings than our tap water if the RO membrane was completely gone.

And what if the installer used copper anywhere in the lines? I shudder to think! [img]images/smiles/icon_eek.gif[/img]