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In a message dated 8/27/02 9:00:17 PM Eastern Daylight Time, 
[EMAIL PROTECTED] writes:

> as I recall, the restrictor fitting should be located on the out 
>  line of the pump, not on the in line. It may not make a big difference,

but 
>  you never can tell.

Of course, you want to put the restrictor on the side the manufacturer
says 
it should be on, and I don't know for sure what that is, but it stands to 
reason that a restriction on the suction side of the pump would tend to
cause 
low pressure in the pump and result in vapor formation under some
conditions. 
 The pump would not work correctly under those circumstances.  So, absent
any 
information to the contrary, I'd put the restriction on the outlet.

John
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