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Re: [APD] Aquatic-Plants Digest, Vol 32, Issue 28

To: aquatic-plants at actwin_com
Subject: Re: [APD] Aquatic-Plants Digest, Vol 32, Issue 28
From: "Charles Lambert" <homedoc1 at hotmail_com>
Date: Wed, 26 Apr 2006 22:05:32 -0500
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Here's food for thought...I used to build homes for a living and I installed 
a bunch of under the sink filtration devices. These filters had carbon as 
well as other type of filters. I am sure that any canister filtration device 
will flow through this type of system as most home uses vary from low to 
medium pressures. They also have the ultraviolet devices to kill any other 
contaminants as well. Your local hardwares, Lowes, Home Depot, etc: carry 
these and may well be something to check out. These devices are relative 
easy to install, easily mounted to cabinetry, and shouldn't interfere with 
the flow of the main canister.


>From: aquatic-plants-request at actwin_com
>Reply-To: aquatic-plants at actwin_com
>To: aquatic-plants at actwin_com
>Subject: Aquatic-Plants Digest, Vol 32, Issue 28
>Date: Wed, 26 Apr 2006 12:00:01 -0400
>
>Send Aquatic-Plants mailing list submissions to
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>
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>than "Re: Contents of Aquatic-Plants digest..."
>
>
>Today's Topics:
>
>    1. Re: Inline Carbon? (Rory O'Brien)
>    2. Re: Inline Carbon? (S. Hieber)
>
>
>----------------------------------------------------------------------
>
>Message: 1
>Date: Wed, 26 Apr 2006 14:56:44 +1200
>From: "Rory O'Brien" <rory_obrien at stonebow.otago.ac.nz>
>Subject: Re: [APD] Inline Carbon?
>To: "'aquatic plants digest'" <aquatic-plants at actwin_com>
>
>Thanks to all those who responded to my query, unfortunately, a brief look
>about the local hardware store revealed nothing that looked like it could 
>be
>made to perform what I had in mind, at least not without a serious risk of
>nasty leakage.
>
>It occurs to me though that what I'm trying to construct, namely an inline
>cavity with handy quick disconnect valves, is actually best described by,
>well, a canister filter. It may be that my cheapest and, in all likelihood
>most failsafe, option is to plumb in a second (pre-loved) canister filter 
>to
>the existing one and use that for housing some carbon instead. Quickly and
>easily emptied of carbon and extra capacity could be used for more filter
>floss.
>
>So now my question to you is, can I connect two canister filters in series
>like this (output from the main filter enters the input for the secondary
>filter and then returns to tank)? Do I risk damaging my current filter (an
>Eheim 2224, pump rated for 700l/h))? The secondary filter will likely be of
>smaller capacity, possibly a Fluval 104 (480 l/h)as there is one currently
>listed on our local (NZ) online auction site for not a whole lot of 
>dollars.
>Can this work?
>
>Cheers,
>- Rory
>
>
> > -----Original Message-----
> > From: aquatic-plants-bounces at actwin_com
> > [mailto:aquatic-plants-bounces at actwin_com] On Behalf Of Rory O'Brien
> > Sent: 13 April 2006 10:29
> > To: Aquatic-Plants at actwin_com
> > Subject: [APD] Inline Carbon?
> >
> > Does anyone know if its possible to get an inline,
> > refillable, activated-carbon filter? Just something that
> > could be spliced into the outflow from a canister filter to
> > hold a quantity of carbon, maybe with shut off valves so that
> > it could be conveniently added or removed without interfering
> > with the filter too much.
> >
> > I appreciate that activated carbon isn't generally encouraged
> > with planted tanks, due to its mopping out the ferts and
> > that, but it does remove yellowing and other discolouration
> > from tannins leached from driftwood and give final clarity
> > and sparkle to the water, and its relatively inexpensive,
> > especially in bulk. I'd like to be able to make use of carbon
> > just temporarily, maybe just for the couple of days prior to
> > a water change/ferts dose, and then be able to quickly and
> > conveniently remove it again. So I'd like to keep it outside
> > of the canister filter body proper, inline with the outflow pipe.
> >
> > Anyone using something like this? Is there such a product
> > avialable? Anyone made something similar?
> >
> > Thanks.
> > - Rory
> >
> > _______________________________________________
> > Aquatic-Plants mailing list
> > Aquatic-Plants at actwin_com
> > http://www.actwin.com/mailman/listinfo/aquatic-plants
> >
>
>
>
>
>------------------------------
>
>Message: 2
>Date: Wed, 26 Apr 2006 07:00:00 -0700 (PDT)
>From: "S. Hieber" <shieber at yahoo_com>
>Subject: Re: [APD] Inline Carbon?
>To: aquatic plants digest <aquatic-plants at actwin_com>
>
>If you connect two centrifugal water pumps in series, you can somewhat less 
>than double the output water pressure. If you connect them in parallel, the 
>pressure will not be increased but the flow will be roughly doubled. Since 
>canisters filters operate at only a a few psi, there is little advantage 
>and littel problem to come from connecting  them in series. You would want 
>to keep a close eye on the o-ring seal on the canister top on the second 
>canister--a canister normally operates at a slightly negative pressure and 
>the slightly positive pressure when its the 2nd canister in series) might 
>exceed the o-ring's design limits -- but I doubt it.
>
>You might do as well to simply run a second canister separately with carbon 
>in it. Either way, carbon filtration by adsorbtion requires long exposure 
>times, so low flow rates are ideal for that purpose. The removal of 
>chlorine and some other chemicals is a catalytic reaction that operates 
>more quickly and higher flow rates will still be effective.
>
>
>Good luck, good fun,
>sh
>* * * * * * * * *
>Come to the 2006 Aquatic Gardeners Association Convention and plan a few 
>extra days in San Francisco enjoying the Cable cars, Lombard St., 
>Chinatown, Fisherman's Wharf . . .
>
>The Convention will be November 10-12 at the Sheraton Gateway Hotel -- San 
>Francisco International Airport. Speakers, Field Trip, and the largest 
>aquatic plant auction in the US.
>
>Details will be posted soon at http://www.aquatic-gardeners.org/
>
>
>----- Original Message ----
>From: Rory O'Brien <rory_obrien at stonebow.otago.ac.nz>
>To: aquatic plants digest <aquatic-plants at actwin_com>
>Sent: Tuesday, April 25, 2006 10:56:44 PM
>Subject: Re: [APD] Inline Carbon?
>
>
>Thanks to all those who responded to my query, unfortunately, a brief look
>about the local hardware store revealed nothing that looked like it could 
>be
>made to perform what I had in mind, at least not without a serious risk of
>nasty leakage.
>
>It occurs to me though that what I'm trying to construct, namely an inline
>cavity with handy quick disconnect valves, is actually best described by,
>well, a canister filter. It may be that my cheapest and, in all likelihood
>most failsafe, option is to plumb in a second (pre-loved) canister filter 
>to
>the existing one and use that for housing some carbon instead. Quickly and
>easily emptied of carbon and extra capacity could be used for more filter
>floss.
>
>So now my question to you is, can I connect two canister filters in series
>like this (output from the main filter enters the input for the secondary
>filter and then returns to tank)? Do I risk damaging my current filter (an
>Eheim 2224, pump rated for 700l/h))? The secondary filter will likely be of
>smaller capacity, possibly a Fluval 104 (480 l/h)as there is one currently
>listed on our local (NZ) online auction site for not a whole lot of 
>dollars.
>Can this work?
>
>
>------------------------------
>
>_______________________________________________
>Aquatic-Plants mailing list
>Aquatic-Plants at actwin_com
>http://www.actwin.com/mailman/listinfo/aquatic-plants
>
>
>End of Aquatic-Plants Digest, Vol 32, Issue 28
>**********************************************

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