Re: RO or Ion-Exchange Resins??

[Scheele Juergen <juesche@earthlink.net>]

I was just 'warming up' after reading so much nonsens about Ion-Exchange Units.

Al is correct right down to the punch line !
..and yes, you can lower the PH & KH & GH to almost 0 with these units.
And you won't have the ratio of 4:1 on wastewater.
As a matter of fact you won't have any waste water at all.
Arthit, we have discussed this issue in the past several times,
please check the archives of the Apisto List and the Plant List as well.

Contact me off list if you need further information.

Juergen
Huntington Beach, CA


Al Smith wrote:

> There is a unit that is manufactured in Germany by AquaTech called the
> kati-ani system ..it is a DI unit that uses seperate kation and anion resins
> in there own containers...From what I am told by people that use them
> (mostly discus people)that they are the tops in DI units..they are also
> rechargable using muriatic for one resin and lye for the other resin...there
> is also no water waste is in RO water...it exchanges hyrdogen ions for
> carbonate ions..also removes phosphates & silicates ..finish water is 0 ppm
> and a ph around 5.4-6.0..I have been looking for one myself used..as they
> range in price betwwen 320- 550..depending on model size...There is a person
> on this list that has one and I forgot his name..but he sent me all the
> instructions on recharging and it does not seem hard..he has had it for 5
> years now and still works perfect..well thats all the info I can give you...
>
> Al
> alsmith1@mindspring.com
>
> ----- Original Message -----
> From: "Arthit Prasartkul" <apisto@thailand.com>
> To: <apisto@listbox.com>
> Sent: Tuesday, October 16, 2001 1:44 PM
> Subject: RE: RO or Ion-Exchange Resins??
>
> >
> > > the KH/pH lower will lower the KH as well as the pH. However it is not
> > > lowering the general hardness of the water. So you will still have to
> get a
> > > RO unit if you want to lower the hardness of your tap water.
> > >
> > > Eric
> >
> > Thanks all for your promply responses. I stil don't quite get it with the
> water chemistry. Would anyone please kindly explain the relations between
> General hardness, KH and pH please. That will be very helpful..
> >
> > If the pH and KH had been lowered, would this be enough to satisfy the
> apisto's needs and preferences?
> >
> > Cheers,
> >
> > Arthit
> > Bangkok, Thailand
> > --
> >
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