...
Current
...
assembly
...
technique
...
One
...
idea
...
we
...
got
...
from
...
Fred
...
Stottlemeyer
...
is
...
to
...
drill
...
holes
...
in
...
the
...
lamella
...
large
...
enough
...
to
...
put
...
1/2¨PVC
...
tube
...
through
...
them,
...
but
...
small
...
enough
...
so
...
that
...
the
...
tube
...
fits
...
snugly.
...
We
...
would
...
then
...
put
...
a
...
short
...
nipple
...
through
...
the
...
hole
...
and
...
put
...
a
...
PVC
...
union
...
on
...
each
...
side
...
of
...
the
...
nipple.
...
We´d
...
squeeze
...
the
...
unions
...
together
...
so
...
that
...
the
...
made
...
a
...
tight
...
sandwich
...
around
...
the
...
lamina.
...
The
...
unions
...
are
...
4.1
...
cm
...
(about
...
5
...
cm)
...
so
...
we´re
...
thinking
...
we
...
could
...
probably
...
just
...
use
...
one
...
union
...
between
...
each
...
floc
...
lamella.
...
We´re
...
going
...
to
...
try
...
...
...
of
...
the
...
union
...
sandwiches
...
out
...
soon.
...
Concerns
...
are
...
that
...
the
...
holes
...
will
...
be
...
hard
...
to
...
drill
...
and
...
that
...
the
...
unions
...
will
...
not
...
be
...
thick
...
enough
...
to
...
securely
...
detain
...
the
...
lamina.
...
The
...
unions
...
might
...
slip
...
through
...
the
...
holes.
| Wiki Markup |
|---|
{float:right|border=2px solid black|width=310px} {anchor:Ojojona assembly}[!Modular plate settler^4cmspacing.png|width=300!|Modular plate settler^4cmspacing.png] h5. Proposed assembly technique for the plate settlers giving 4 cm spacing. {float} |
We
...
think
...
we
...
have
...
a
...
good
...
solution
...
to
...
the
...
plate
...
settler
...
issue.
...
We
...
tried
...
Fred`s
...
suggestion
...
of
...
using
...
the
...
1/2"
...
PVC
...
unions
...
as
...
spacers
...
and
...
connecting
...
them
...
with
...
short
...
nipples
...
of
...
1/2"
...
pipe.
...
It
...
worked
...
very
...
well.
...
Concerns
...
that
...
we
...
had
...
discussed
...
were:
...
- That
...
- it
...
- would
...
- be
...
- hard
...
- to
...
- drill
...
- a
...
- 7/8"
...
- (the
...
- O.D.
...
- of
...
- 1/2"
...
- PVC)
...
- hole
...
- in
...
- the
...
- lamina
...
- without
...
- destroying
...
- it.
...
With
...
- a
...
- hole
...
- saw,
...
- as
...
- Monroe
...
- suggested,
...
- the
...
- holes
...
- came
...
- out
...
- well.
...
- We
...
- were
...
- able
...
- to
...
- drill
...
- 4
...
- lamina
...
- at
...
- once
...
- and
...
- think
...
- we
...
- will
...
- be
...
- able
...
- to
...
- drill
...
- 6.
...
- The
...
- only
...
- problem
...
- we
...
- ran
...
- into
...
- was
...
- that
...
- the
...
- hole
...
- saw
...
- heats
...
- up
...
- and
...
- starts
...
- to
...
- melt
...
- the
...
- lamina
...
- if
...
- you
...
- drill
...
- a
...
- lot
...
- of
...
- hole
...
- quickly.
...
- We
...
- are
...
- confident
...
- that
...
- by
...
- keeping
...
- the
...
- drill
...
- at
...
- a
...
- low
...
- speed
...
- and
...
- cooling
...
- the
...
- bit
...
- between
...
- holes
...
- we
...
- can
...
- resolve
...
- this
...
- problem.
...
- That
...
- the
...
- large
...
- holes
...
- would
...
- compromise
...
- the
...
- strength
...
- of
...
- the
...
- policarbonate.
...
We
...
- pulled
...
- and
...
- pushed
...
- pretty
...
- hard
...
- at
...
- the
...
- hole
...
- and
...
- shook
...
- the
...
- module
...
- voilently
...
- and
...
- saw
...
- absolutely
...
- no
...
- damage.
...
- The
...
- hole
...
- did
...
- not
...
- expand
...
- or
...
- crack
...
- at
...
- the
...
- edges.
...
- We
...
- didn´t
...
- push
...
- it
...
- to
...
- failure
...
- because
...
- we
...
- didn´t
...
- have
...
- any
...
- small
...
- pieces
...
- that
...
- we
...
- wanted
...
- to
...
- waste.
...
- Still,
...
- we´re
...
- confident
...
- that
...
- it
...
- will
...
- hold
...
- up.
...
Another
...
- advantage
...
- of
...
- this
...
- method,
...
- on
...
- top
...
- of
...
- cost,
...
- is
...
- that
...
- Antonio
...
- says
...
- it
...
- is
...
- much
...
- easier
...
- to
...
- put
...
- together
...
- than
...
- the
...
- caps
...
- and
...
- scews.
...
If
...
- you
...
- folks
...
- at
...
- Cornell
...
- approve,
...
- we´d
...
- like
...
- to
...
- move
...
- ahead
...
- with
...
- this
...
- idea.
...
- On
...
- the
...
- other
...
- hand,
...
- if
...
- you
...
- want
...
- to
...
- do
...
- more
...
- testing
...
- of
...
- it
...
- there
...
- and
...
- think
...
- about
...
- other
...
- possibilities,
...
- we
...
- could
...
- wait
...
- a
...
- week
...
- to
...
- decide
...
- for
...
- sure.
...
The
...
unions
...
that
...
we
...
want
...
to
...
use
...
as
...
spacers
...
are
...
only
...
4
...
cm
...
in
...
length.
...
This
...
would
...
mean
...
smaller
...
gaps
...
between
...
the
...
sed
...
lamella.
...
I
...
think
...
I
...
remember
...
Fred
...
saying
...
that
...
usually
...
lamella
...
spacing
...
is
...
smaller
...
than
...
4
...
cm
...
and
...
that
...
this
...
might
...
give
...
improved
...
performance.
...
Of
...
course
...
it
...
would
...
also
...
mean
...
more
...
lamella.
...
Instead
...
of
...
buying
...
60
...
12-foot
...
polciarbonate
...
sheets
...
for
...
the
...
plant
...
(floc
...
and
...
sed),
...
it
...
would
...
mean
...
buying
...
72
...
sheets.
...
At
...
a
...
cost
...
of
...
900L
...
a
...
sheet,
...
this
...
is
...
10,800
...
L
...
or
...
about
...
$550,
...
but
...
still
...
much
...
less
...
than
...
what
...
we´ll
...
save
...
by
...
not
...
buying
...
CPVC
...
caps.
...
We
...
had
...
another
...
idea
...
to
...
make
...
the
...
spacers
...
5
...
cm:
...
cut
...
1cm
...
rings
...
from
...
unions
...
and
...
put
...
them
...
together
...
with
...
the
...
full
...
unions.
...
This
...
would
...
work
...
but
...
we
...
think
...
it
...
will
...
be
...
difficult
...
to
...
cut
...
the
...
rings
...
uniforly
...
to
...
1
...
cm.
...
If
...
the
...
4cm
...
spacing
...
will
...
work
...
just
...
as
...
well
...
or
...
better
...
we
...
recommend
...
going
...
with
...
that.
...
The
...
two
...
options
...
are
...
drawn
...
in
...
the
...
attached
...
power
...
point.
| Wiki Markup |
|---|
{float:right|border=2px solid black|width=310px} {anchor:Ojojona assembly}[!Modular plate settler^5cmspacing.png|width=300!|Modular plate settler^5cmspacing.png ] h5. Proposed assembly technique for the plate settlers giving 5 cm spacing. {float} |
We`re
...
also
...
discussing
...
how
...
many
...
spacers
...
to
...
put
...
in
...
the
...
sed
...
modules.
...
In
...
the
...
same
...
attached
...
file
...
is
...
a
...
diagram
...
of
...
three
...
different
...
posibilities.
...
We
...
tried
...
the
...
7
...
spacer
...
option
...
and
...
it
...
looked
...
alright
...
but
...
we
...
thought
...
it
...
would
...
be
...
worth
...
adding
...
more.
...
The
...
8
...
spacer
...
option,
...
with
...
the
...
middle
...
row
...
staggered
...
looks
...
the
...
strongest
...
to
...
us,
...
even
...
better
...
than
...
the
...
9
...
spacer
...
option.
...
One
...
possible
...
concern
...
is
...
that
...
the
...
8
...
spacer
...
option
...
blocks
...
more
...
of
...
the
...
path
...
through
...
the
...
lamella
...
with
...
spacers,
...
since
...
they
...
are
...
in
...
5
...
different
...
horizontal
...
positions.
...
To
...
us
...
this
...
seems
...
insignificant.
...
Are
...
you
...
in
...
agreement?
| Wiki Markup |
|---|
{float:right|border=2px solid black|width=310px}
{anchor:Ojojona assembly}[!Modular plate settler^connectorpattern.png|width=300!|Modular plate settler^connectorpattern.png]
h5. Proposed pattern of connectors.
{float} |