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green growth in reclaim

updated fri 16 oct 98

 

Karen Gringhuis on mon 12 oct 98

I have something green growing on the inside of my porcelaim reclaim
bucket below the clay/water line. Same occurs on old bag of snake
clay - clearly in little colonies. What is this - is it good, bad,
doesn't eat much?

I am used to gray in the reclaim which disappears when exposed to
air - even had heat in the bucket once. But what is this GREEN?
TIA Karen Gringhuis

Dannon Rhudy on tue 13 oct 98


Most growths of that kind are molds
of one sort or another. I have seen
it often, mostly a variety of greens,
in both stoneware and porcelain
reclaim buckets. It does not appear
to hurt anything. It might if one were
sensitive to molds. It burns out when
bisqued. Bleach will kill it, and some
add bleach to the slip buckets from time
to time.

Dannon Rhudy
potter@koyote.com

----------
> From: Karen Gringhuis
> To: CLAYART@LSV.UKY.EDU
> Subject: GREEN GROWTH IN RECLAIM
> Date: Monday, October 12, 1998 12:51 PM
>
> ----------------------------Original message----------------------------
> I have something green growing on the inside of my porcelaim reclaim
> bucket below the clay/water line. Same occurs on old bag of snake
> clay - clearly in little colonies. What is this - is it good, bad,
> doesn't eat much?
>
> I am used to gray in the reclaim which disappears when exposed to
> air - even had heat in the bucket once. But what is this GREEN?
> TIA Karen Gringhuis

Assumption Abbey on tue 13 oct 98

At 08:51 10/12/98 EDT, you wrote:
>----------------------------Original message----------------------------
>I have something green growing on the inside of my porcelaim reclaim
>bucket below the clay/water line. Same occurs on old bag of snake
>clay - clearly in little colonies. What is this - is it good, bad,
>doesn't eat much?
>
>I am used to gray in the reclaim which disappears when exposed to
>air - even had heat in the bucket once. But what is this GREEN?
>TIA Karen Gringhuis
>-----------

Dear Karen,

I have had this 'green' stuff also and I can't say exactly what its
components are but it looks a lot like the algae that forms in water. I
had a fair amount of this once and didn't like the 'clumps' in and on my
brush work when I used the porcelain as a slip. I solved a lot of the
problem by putting all my prized white slip containers inside (another)
darker 5 gal. pail so that no light would get to the slip pail. It appears
that this stuff likes light to grow which is the same for most algae too.
Keep your slips in a dark place to prohibit growing any of these nasty
creatures. Hope this helps but don't know exactly what they are either.
It does seem like they fire out but if the masses are large and clumpy they
may prohibit your work in getting that fine smooth surface you are after.
Good luck. Maybe the movie people could make a movie and call it 'swamp
thing' - ha.

Llewellyn

Kat Berger on tue 13 oct 98

Green growth is maybe one of the best things that your reclaim can have
(along with an ichy bad smell). This is bacterial growth. Nothing that
you will get sick from, although I don't recommend eating it. The
organic material growth will add wonderful amounts of plasticity to your
clay when it's remixed. I always throw a bucket of old reclaim into
every batch of clay I make.

Stephen Mills on tue 13 oct 98

Karen, this is good.
When you dry down your reclaim, you will have in it organic material
which if left to grow, die, decompose, etc. etc. will aid plasticity and
make what is often a difficult material much easier to handle. It will
burn out on firing and leave no trace.
The old potters used to say the mustier a clay smelt the better it
handled, the above is why and they were right in my experience.

Steve
Bath
UK


In message , Karen Gringhuis writes
>----------------------------Original message----------------------------
>I have something green growing on the inside of my porcelaim reclaim
>bucket below the clay/water line. Same occurs on old bag of snake
>clay - clearly in little colonies. What is this - is it good, bad,
>doesn't eat much?
>
>I am used to gray in the reclaim which disappears when exposed to
>air - even had heat in the bucket once. But what is this GREEN?
>TIA Karen Gringhuis
>

--
Steve Mills
Bath
UK
home e-mail: stevemills@mudslinger.demon.co.uk
work e-mail: stevemills@bathpotters.demon.co.uk
own website: http://www.mudslinger.demon.co.uk
BPS website: http://www.bathpotters.demon.co.uk

Joy Holdread on wed 14 oct 98

In a message dated 10/13/98 7:17:57 AM US Mountain Standard Time,
potter@koyote.com writes:

>
> Most growths of that kind are molds
> of one sort or another. I have seen
> it often, mostly a variety of greens,
> in both stoneware and porcelain
> reclaim buckets. It does not appear
> to hurt anything. It might if one were
> sensitive to molds. It burns out when
> bisqued. Bleach will kill it, and some
> add bleach to the slip buckets from time
> to time.
>
> Dannon Rhudy
> potter@koyote.com
>
> ----------
> > From: Karen Gringhuis
> > To: CLAYART@LSV.UKY.EDU
> > Subject: GREEN GROWTH IN RECLAIM
> > Date: Monday, October 12, 1998 12:51 PM
> >
> > ----------------------------Original message----------------------------
> > I have something green growing on the inside of my porcelain reclaim
> > bucket below the clay/water line. Same occurs on old bag of snake
> > clay - clearly in little colonies. What is this - is it good, bad,
> > doesn't eat much?
> >
> > I am used to gray in the reclaim which disappears when exposed to
> > air - even had heat in the bucket once. But what is this GREEN?
> > TIA Karen Gringhuis
>
>
I always thought molds helped age the clay & made it more plastic?
Joy in Tucson

Dannon Rhudy on thu 15 oct 98



> > Most growths of that kind are molds,
> > of one sort or another. .... I have seen
> > it often,.....
> > >
> > > ----------------------------Original
message----------------------------
> > > I have something green growing on the inside of my porcelain reclaim
-----------------------------> >
>


I always thought molds helped age the clay & made it more plastic?


> Joy in Tucson
-----------------------------------------------------------

It does help age the clay, Joy. But some people
are allergic to certain slime molds and/or algaes.
If that is a concern, then they can add bleach to
the slip barrel.

Dannon Rhudy