Quote:
Originally posted by Troy F:
[QB.
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<font size="2" face="Verdana, Helvetica, sans-serif">Jim, it has been suggested that you can cut the nozzles off powerheads to give them a little less velocity while spreading out the flow. Is this something that you see cutting the life of the pump?[/QB][/quote]
Like I said, I havent specifically played with powerheads but have done much with similar submerged pumpheads - just on a bigger scale. On those the size of the discharge nozzle is the flow restrictor that keeps the pump/motor in an acceptable operating range. Mess with it and you have troubles. Would it have the same effect on a powerhead, I can only assume that. The nozzle is there for a reason - maybe just for velocity, but velocity = pressure (back pressure on the pump, reducing flow, reducing amp draw) Hmmm, but if the powerhead (with nozzle) were not running at the absolute max rating of the motor, there might be a little bit of wiggle room when the nozzle is cut off. Wouldnt know for sure unless a person did a before & after test with a meter. If the amp draw exceeds the marked rating, it will definately affect pump life.
Jim