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A
pitless
adapter is
a break
away
coupling
mounted
down in a
well so
that the
discharge
pipe can
exit the
well below
ground and
the pump
can still
be
removed.
It
is usually
made of
brass and
consists
of three
pieces:
1.
A
moveable
piece
which the
pump drop
pipe
threads
into from
below and
a pulling
pipe from
above. The
pulling
pipe hole
is a blind
hole so
water does
not come
up into
it. This
slides
into and
rests on
the fixed
part to
support
the pump
and drop
pipe. 2.
A fixed
piece with
a threaded
end that
fits into
a hole
drilled
into the
well
casing
from the
outside.
This means
you have
to dig
down from
the
outside
with a
hole big
enough to
get a
drill and
hole saw
into. The
fixed
piece has
a track
built into
it which
the
moveable
piece
rides down
in and
seals
against a
rubber
“
o “ ring
. The part
that goes
through
the well
casing is
also
threaded
internally
so the
external
piping can
be
connected. 3.
A large
nut,
curved
washer and
rubber
gaskets to
tighten
the fixed
piece onto
the well
casing and
seal the
well. It
takes an
amazing
amount of
force to
separate
the two
main
pieces
after they
have been
in a
while.
Pull hard,
you won’t
break it.
The
fixed
piece
takes up
about 1 1
/2"
of space
inside the
well. The
well
casing has
to be big
enough so
that the
pump can
get by it,
6"
normally.
If
the well
casing is
smaller,
cut it off
and
concrete
in a piece
of
6". The
real trick
is getting
the fixed
piece in
if the
hole has
to be
deeper
than two
feet.
Assuming
you do not
have an
orangutan
handy, try
this: Run
a stiff
wire from
the hole
to the
surface.
Thread the
wire
through
the
assembled
adapter
less the
outside
well
fitting.
Thread the
lifting
pipe into
the top of
the
moveable
piece.
Lower the
fitting
down on
this pie
and stab
it into
the hole
using the
wire as a
safety
device.
Put the
outside
gasket,
washer and
nut on and
pull the
wire out.
If
you are
adding a
bigger
piece of
casing,
just put
the
fitting on
before you
put the
casing in. |
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