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Re: RO units



Michael Gray wrote:
> 
> Can someone give me the run down on RO vs Deionized?  I am contemplating
> purchasing an RO unit from Debron Aquatics.  They have a 50 gallon/day TFC
> for $160 or a Maxima 50/day for $230.  Are these good prices?  The Maxima
> has a deionization cart. attached, is it worth the extra $70? Thanks for
> any imput. I want to make my purchase within the next few days.

IMHO, RO is adequate for just about any fish purpose, and the cheaper units
at Costco, Home Depot, et al, are about as good as any for normal fishrooms.
10G per day capacity is usually enough for quite a large setup. If I wanted
excellent product backing, with expert  help, I'd probably go to Ron Harlan,
in LA, for a unit.

DI water can get your tds below 10 ppm. RO will do 20-50 ppm, which is still
way too soft for most fish. [You mix with tap water to get the hardness and
pH stability you need.]

My first RO unit was from the old Price Club. It was in heavy use for about
8 years at my company photo dark room, then retired to fishroom duty for a
couple more years. After 10 years, it was still giving 10G/day output at <50
ppm from 300 ppm tap water. It still has the original membrane and only pre-
and post-filters were ever changed.

My new unit, bought to get better action and auto cutoff feature, gives
30ppm and keeps a 32G trash can full at all times. Rated at 10G/day (I
think), it is off most of the time and I have a *lot* of tanks. It has
triple carbon filtering, so also seems adequate at removing the chloramine.

Wright

-- 
Wright Huntley, Fremont CA, USA, 510 494-8679  huntleyone at home dot com

         "DEMOCRACY" is two wolves and a lamb voting on lunch.
     "LIBERTY" is a well-armed lamb denying enforcement of the vote.
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