Re: RO or Ion-Exchange Resins??

["Mike Chappell" <chippell@sgi.net>]

Ok...

Well,  saying ion-exchange, is like Zack has said same as the mechanism
behind water softners, as water passes through the filtration media, such as
a Sodium Chloride solution, your Sodium will be released as it has a (+)
positive charge, and replaced with a calcium which will be (++)Positive,
thus justifying the reason for exchange.  Now thier are solids in your
water, just different solids, that are more soluable in water, forming less
deposits etc. Now when we talk DI's on an RO/DI system, your mixed bed DI's
will attract the particales such as calcium, but not exchange it with
anything, merely polishing your water of the elements in the water column.
With a good RO system it all depends on your water to what level you want to
be at to fit your needs. IF you just want to lower your hardness down you
may simply want to go just with an RO system, a 3 stage RO will do a serious
job on moderatly hard water, without the use of a DI.  Now with the DI, your
water should be very low, if not nil readings.

If that sounds confusing- email me, i'll go further into it:)

Mike Chappell - Owner
Three Guys Aquatics

----- Original Message -----
From: "Zack Wilson" <aquamaniac@earthlink.net>
To: <apisto@listbox.com>
Sent: Friday, January 01, 1904 1:49 AM
Subject: Re: RO or Ion-Exchange Resins??


> Most ion-exchange resins that you can get from pet stores will do nothing
to
> reduce the dissolved mineral content of your water. As the name implies,
> they are simply exchanging one ion for another, usually sodium for
calcium.
> They are recharged by putting in salt solution. It hardly seems beneficial
> to be adding salt ions to the water when you're dealing with apistos.
>
> Zack
>
>
>
> -------------------------------------------------------------------------
> This is the apistogramma mailing list, apisto@listbox.com.
> For instructions on how to subscribe or unsubscribe or get help,
> email apisto-request@listbox.com.
>



-------------------------------------------------------------------------
This is the apistogramma mailing list, apisto@listbox.com.
For instructions on how to subscribe or unsubscribe or get help,
email apisto-request@listbox.com.