Re: Film washing problem?

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Greg,

You don't have scratches.  As you noted, you have
sludge.  I've had the same problem before.

You got it in possibly two ways.  Depending on your
distilled water volume, you used too much LAN. The
directions say two drops per 500ml or pint.  That is
the most you want to use.  It is preferable to use
only one drop.  This stuff is concentrated.

Second, you squeegeed with your fingers.  Don't do
that.  The action of even a clean squeegee creates the
aeration that causes foam.  That's what dries and ends
up looking like sludge.

Don't squeegee your negatives.  Just lift them gently
from your wetting solution and hang them to dry.

If you are concerned about air-born dust, run your hot
water enough to create a good head of steam in the
room.  That will pull out most of the dust at that
time and give your negatives a good drying
environment.

The comment about filtering you tap water is also
wise.

I'm afraid there may be no saving Barbie, though. 
Once the crud is dried into the emulsion, it's stuck. 
But try a dilute (one drop) LAN soak anyway.  It won't
hurt.

Finally, don't use PhotoFlo for anything but cleaning
your equipment.  It is about the foamingest stuff
there is and next to impossible to get into to a low
enough concentration to do you any good.  It's why
they made squeegees and sponges in the first place.

Peace!
Sidney


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