Re: [APD] RO/DI units

[revance at indiana_edu]

If you have a RO/DI filter you should really have a TDS meter. Using one of 
these is really the only way to know when your DI filter is exhausted. I have 
seen Milwaukee pocket TDS meters for $25... however I have not had any 
experience with them. I do have a Milwaukee pH controller and have been happy 
with it. About which RO unit to buy, I just bought one on Ebay from 
aquasafecanada for a very good price. I haven't received it yet, but he has 
over 2500 positive feedbacks and only like 2 negative feedbacks, so I imagine I 
will also be happy with it. I got a 75gpd 6 stage RO/DI unit for $50, they also 
have 100gpd models. As I said, I haven't actually gotten mine, so I can't 
really endorse it yet.



Quoting "S. Hieber" <shieber at yahoo_com>:

> I can't advise on which RO unit to buy but to check
> performance, an electrictrical conductivity test might be a
> good general test. RO ought to measure about 5-15
> microSiemens; Di water should read about 0-1 microSiemens.
> 
> There are lots of conductivity testers around, including
> small pocket-sized models. American Marine (Pinpoint) also
> makes a very reliable model.
> 
> Scott H.
> 
> 
> --- Chad Sutton <chadsutton at tampabay_rr.com> wrote:
> > How do I know which unit to purchase?  There seems to be
> > an explosion of
> > these lately.  I would like to store around 200 gallons
> > of the RO/DI water
> > which I will use to mix saltwater in another container. 
> > What tests can I
> > perform to make sure the ro unit is working correctly,
> > chlorine, phosphates,
> > ammonia, etc?
> > 
> > _______________________________________________
> > Aquatic-Plants mailing list
> > Aquatic-Plants at actwin_com
> > http://www.actwin.com/mailman/listinfo.cgi/aquatic-plants
> 
> 
> =====
> -  -   -   -   -   -   -   -
> Field Trip to the Baltimore Aquarium and The Aquarium Center
> First event of the AGA Annual Convention Nov 12, 13 & 14; 
> Details & Registration at www.aquatic-gardeners.org  & www.gwapa.org
> 
> 
> 	
> 		
> __________________________________
> Do you Yahoo!?
> Yahoo! Photos: High-quality 4x6 digital prints for 25¢
> http://photos.yahoo.com/ph/print_splash
> _______________________________________________
> Aquatic-Plants mailing list
> Aquatic-Plants at actwin_com
> http://www.actwin.com/mailman/listinfo.cgi/aquatic-plants
> 
> 
> 


_______________________________________________
Aquatic-Plants mailing list
Aquatic-Plants at actwin_com
http://www.actwin.com/mailman/listinfo.cgi/aquatic-plants