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Old January 9, 2012, 09:24 PM
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KaptCrunch KaptCrunch is offline
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Quote:
Issue:
So the first immediate issue I noticed when I tried to do the initial push through was the D5 Pump (setting 5) immediate made a noise it never made before. It's spins up properly and then makes a kind of sputtering noise -- if I drop the setting, it goes away.
its called cavitation .....is the formation and then immediate implosion of cavities in a liquid – i.e. small liquid-free zones ("bubbles") – that are the consequence of forces acting upon the liquid. It usually occurs when a liquid is subjected to rapid changes of pressure that cause the formation of cavities where the pressure is relatively low.

try to suck up a .250 ball in .253 ID straw

means inlet too small for impeller speed
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