Robert Macy wrote:

OT, but you guys know where to find everything!

Anybody know where to get a 'recirculating' pump system that sucks up
liquid [mainly water based] and jumps the pressure up into the
40-60psi or even more range and can supply several gallons per minute
[first pass estimate] against back pressure, like attempting to block
the exit nozzle. Hand held ON/OFF nozzle with a bore on the range of
3/16 to 1/4 inch, or 5/16 [1/8 inch is too small and suspect 3/8 is
too large] Like an air brush nozzle.

Need to be portable, 110vac, and run quietly.

Everything self contained: plastic/rubber tubes, pickup apparatus to
place in bottom of liquid container, hand held trigger nozzle with
push button ON/OFF control, and pump,

Any idea where to get this?

Is the flow rate critical? You can generate 40-60 psi head with a
properly-sized centrifugal pump. But the flow might vary significantly as
the back pressure builds up.

For a flatter flow characteristic, a positive displacement pump plus a
pressure relief valve will give you a more constant flow right up to where
the valve opens. But this is more of a specialty setup and a pump expert
may need to be consulted.

Also, what's in the 'mainly water' that you'll be pumping? Pump resistance
to chemicals and/or abrasives might be an issue.

--
Paul Hovnanian
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If you're ridin' ahead of the herd, take a look back every now and
then to make sure it's still there.