here in the dallas area we have weird septic systems...designed by
baylor university.

the system has 3 tanks. first is a solids settling tank. liquor
overflows into an aeration tank into which air is pumped from a pump
on the surface.

water from this overflows into a holding tank into which is added
bleach. when the water level reaches a certain level this is sprayed
on the lawn (yes...this happens).

question is about the aerator pump. this is a 24/7 pump having a check
valve with a sensor on the output.

right now the pump shuts down about every 4 hours. the system is
microprocessor controlled. if i disconnect the power and reset the
system the pump resets and all is fine...for about 4 hours.

any ideas?

problems don't get any better than this!

thanks all...