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Re: leaded or unleaded filters ?
----- Original Message -----
From: "Tony Terceira" <terceira at ride_ri.net>
To: <killietalk at aka_org>
Sent: Saturday, July 28, 2001 10:11 PM
Subject: Re: leaded or unleaded filters ?
>
> Many of the sponge filters use lead for ballast ... it is cheap and works
> well, the Hydro series, all of their bases I believe contain lead weight,
> the only difference is it is completely sealed in the plastic
> molding. Jungle magnets use a lead circle for weight, again sealed to
> make it harmless.
>
> I will have to take a photo of he small filters that I
> have from 20 years ago, they are small, and light blue, can't remember the
> imported. I use them in everything shoe boxes, small tanks the airline
goes
> through a hole in the side of the filter and plugs into a small inverted
> funnel configuration that produces fine bubbles, if they clog, a straight
> pin opens the holes. The point is that they came with a 3 inch circle of
> lead that sat in the bottom . Remove lead add lava rocks for weight and
> filtration and you were in business.
>
> The worst filter for exposed metal is the smallest AZOO multi filter, it
is
> wonderful by design, if it clogs you can remove the tower and clear the
pin
> holes, they sit flat on the bottom and have a fine sponge. the
problem ---
> a zinc( I think) washer for weight, and it is solid, rusts nicely in
> water ... what a shame, I have removed the washers and glued the base on
> slate for weight, it works, but is not ideal. I am now thinking that
> the zinc washers which are thick and heavy can be encapsulated in the
stuff
> they dip pliers in for electrical work ... any other suggestions. for
> encapsulating a large metal washer ?
>
> I hate to throw them away .. they are the smallest
filters
> available and work so well in shoe boxes and other plastic ware, I hate to
> stop using them.
>
> Thanks, Tony
>
Don't throw them away; seal it with silicone.
You can put a dab of silicone over the lead
and if you want more weight you can put
some washers on the bottom of the small
Azoo and seal them in with silicone. Four
or five 7/8 inch washers add a little more
weight and the silocone on the bottom keeps
the filter from sliding. Works like a charm.
Regards
erny
>
> > >
> > >
> > > Jose Perez wrote:
> > > >
> > > > Wright did you remove the weight from one of the filters, and do
these
> >tests
> > > > ? just curious.
> > > >
> > >
> > > I don't have one and never did. I was just describing the obvious
> >properties
> > > of lead that make it extremely difficult to confuse with any other
metal.
> > > That combination of cheapness, color, density and softness, would
> >eliminate
> > > any other metal, IMHO.
> > >
> > > Wright
> > >
> > > --
> > > Wright Huntley, Fremont CA, USA, 510 494-8679 huntley1 at home_com
> > >
> > > In retrospect it becomes clear that hindsight is definitely overrated.
> > >
> > > http://environmental.networkroom.com/
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> >
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