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Re: R/O Units



Guys.........Z-Man and Bob and anyone.........I'll risk showing my
ignorance....it's never hurt me before too much....;-)  I've been using RO
for years under the assumption that the "waste" water is a million-zillion
ppm hard.  My logic is as follows..........if 1 gallon of water is say
200ppm "hard" and you push it through a membrane and you get 1/3 of a gallon
of "pure" RO water (you have lost 1/3 of your volume) aren't the "hardness
things" (chemicals) now concentrated in the 2/3 of a gallon of "waste
water"............I know the filter traps some of the "gunk" and should be
back flushed every now and then but is it really valid to say that if 200
ppm water is going in then 200 ppm water is the waste
water..............man, that shows how lazy I get sometimes, and how often
we goofs simply accept that which we are told.  I need to go measure the
"out" as well as the "in" as well as the RO.............please elaborate but
thanks for the enlightenment!!!!!!!!

Mike

Mike Jacobs
Center for Advanced Technologies
Lakewood H.S.
St Pete, Fl  33705
mjacobs2@tampabay.rr.com

----- Original Message -----
From: <IDMiamiBob@aol.com>
To: <apisto@majordomo.pobox.com>
Sent: Sunday, June 11, 2000 12:33 PM
Subject: Re: R/O Units


> Z-man writes:
>
> > I always enjoy the comments regarding RO "WASTE" water! I hope by using
> that
> >  word "waste" you are not dumping it out and losing it. I have a unit
that
> >  produces 25 gallons per day with "non-RO" water at 125 gallons ratio
for
> >  about seven years now. I maintain 80 tanks with an average of about 15
> >  gallons. The RO water is used only for breeding Apistos and all the
other
> >  water is used for all other tanks. When I sell Apisto's to the local
> store,
> >  they are in regular tap "waste" water to avoid stress as I know the
store
> >  doesn't use it's RO water for the sales tanks. At least 75% of my tanks
> use
> >  the so-called waste water. My tap water is 170ppm and the waste water
is
> >  still 170ppm. There is never any added hardness in any RO system;
that's
> > what
> >  the filters are for. I actually keep 10 to 15 gallons of that water in
> >  1-gallon milk type containers for all our cooking needs and it makes
great
> >  coffee! Why the words "waste water" are used, I'll never know. If you
use
> > the
> >  water from your tap, why wouldn't you use this water where all the
small
> >  unseen particales are removed and it's a lot purer?
>
> Don makes a good point here.  Most of the people who are tossing the
"waste
> water" out are simply lacking a little ingenuity.  If you live in those
areas
> of the Southwest US where the water is rock-hard, and also extremely
scarce,
> then you could put a storage tank in and pump it out onto the lawn.  The
> added expense would pay for itself in lower water bills over a few years.
> You could also add rift-lake cichlids to your fish room, and the hard
stuff
> would already be ideal without the addition of salts.  It would be hard to
> use it from the tap, but there are other means of employing it.  If you
live
> east of the Mississippi, or in the Northwest rainforest, you may not
> understand and appreciate what a truly precious commodity fresh water is.
> Here in Idaho, more lawyers make their living from "Water Rights Law" than
> you can imagine.
>
> Bob Dixon
>
>
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