Technetters,

I am using Dosmatic (Advantage) water driven proportional pumps to dose
most of my diluted chemistries around the innerlayer departments.  I
have acid and alkaline solutions at 10% or less, including developer,
stripper, and cleaning solutions.  When the pumps are dialed in, they
work great, but every-so-often, without warning, I have problems of
misproportioned mixing.  It truly is a great idea, but was wondering if
there are any other ideas on how to autodose without headaches?  PLC
types are standard.  Thanks.

--
David M. Nemer
THOR Chemical
San Diego, CA
Fax: (619) 270-7197
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