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Note:
The Hammerhead-Pro pump can be submerged for long periods of time at most sites. If the
well environment is such that deposition occurs on stainless steel parts, the operator may wish to
raise the pump above the water level during a shutdown of the system.
* Routing the air exhaust in vacuum wells:
QED controllerless pumps ( i.e., AutoPumps and HammerHead Pumps) automatically control the
liquid level in the well. Under normal conditions, the liquid level will be maintained at a point approx-
imately one foot below the top of a bottom load pump (this is the pump's actuation point). The pump
will automatically start and stop as needed to maintain the level at this actuation point.
When QED controllerless pumps are used in wells that are under vacuum, and the exhaust air is
routed into the well, the well level will be maintained at this normal actuation point. If, however, the
well is under vacuum and the exhaust air is routed outside of the well (to atmospheric pressure), the
actuation point of the pump will be higher than the normal actuation point by a distance equal to the
amount of vacuum applied to the well (expressed in "inches of water column"). Please note that the
pump will still function normally and maintain the liquid level, albeit a higher level.
