Sylvan Butler wrote:

On Tue, 26 Apr 2005 11:40:35 -0400, Gary Lieberman wrote:


I would like to vary the speed of my pump. During the night I would like
to slow the output by 50%. The pump runs on 220 volts. Does anyone have



Does your pump rely on the water for cooling? Running the pump slower,
if that is even possible, may shorten the life of your pump.

Consider buying a smaller pump. Day==big pump, night==small pump.
Redundency, reliability, ...

sdb



check out the "Money Saver Pumps"

W. Dale
Wilmdale Pond - http://home.pcisys.net/~muaddib