Re: [GBlist] cistern article in FHB

["John Salmen" <terrain3@home.com>]

the halfround gutter is a good point and I think is a good idea (excepting
the cost issue) unless the system has other forms of bacterial filtration.

The sources of contamination from rooftop water collection are bird and
animal faeces, decaying of organic material (leaves, bugs,etc), and
contamination from the materials used. The kind of debris that collects in
corners of gutters is hard to remove, is not removed in the first flushing
and remains as a potential contaminant. Half round gutters would go a long
way in reducing this and would facilitate a good initial flush - it makes
good sense to me - however it does not eliminate the problems of
contamination. I would ideally couple a system with roughing and slow sand
filtration which can be site built and not worry about screening or even
flushing.

John Salmen
TERRAIN EDS

----- Original Message -----
From: "Mark Marcoplos" <marcoplos@mindspring.com>
To: <greenbuilding@crest.org>; "Sacie H Lambertson"
<dlambert@grasshoppernet.com>
Sent: Wednesday, September 26, 2001 1:22 PM
Subject: Re: [GBlist] cistern article in FHB


> I have a gutter business as part of my construction company. Half-round
> gutters are quite a bit more expensive than ogee-types with the square
> bottom. The article says that round gutters allow less debris build-up
> (maybe so...) & that's their only reason. Personally, I wouldn't hesitate
to
> use ogee-type gutters. You'll need a debris screen anyway for you cistern.
> Sometimes I think those Fine Homebuilding writers think too hard and try
to
> come up with a longer list of things to think about than is really
> necessary.
>
> Mark
>
> ----- Original Message -----
> From: "Sacie H Lambertson" <dlambert@grasshoppernet.com>
> To: <greenbuilding@crest.org>
> Sent: Wednesday, September 26, 2001 3:00 PM
> Subject: [GBlist] cistern article in FHB
>
>
> > Just as I am about to order a couple of cisterns, FHB comes out with
what
> > looks like a very useful article about these; as often is the case, when
> > one thinks logic provides the answer, the suggestions from this piece
> offer
> > guidance in a different direction---eg rounded gutters rather than the
> > square ones, and oversized downspouts.  What I would like to know from
> > anyone on the forum who has first-hand experience, is whether the FHB
> > cistern piece is accurate?
> >
> > I'll be obtaining my cisterns from a septic tank manufacturer; plan to
put
> > Xypex, a waterproofing agent in the concrete mix when he does his pour,
so
> > we won't have to seal it every few years.  How about a good spec for
rebar
> > in in?  Any other suggestions? These tanks will be pretty small potatoes
> > compared to FHB's--ie 1250 gals each, but then we have a lot more rain
> than
> > in Texas too.
> > Sacie Lambertson
> >
> > ______________________________________________________________________
> > This greenbuilding dialogue is sponsored by REPP/CREST, creator of
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> > ______________________________________________________________________
> >
> >
>
>
> ______________________________________________________________________
> This greenbuilding dialogue is sponsored by REPP/CREST, creator of
> Solstice http://www.crest.org, and BuildingGreen, Inc., publisher of
> Environmental Building News and GreenSpec http://www.BuildingGreen.com
> ______________________________________________________________________
>


______________________________________________________________________
This greenbuilding dialogue is sponsored by REPP/CREST, creator of
Solstice http://www.crest.org, and BuildingGreen, Inc., publisher of
Environmental Building News and GreenSpec http://www.BuildingGreen.com
______________________________________________________________________