Product Manual

PAGE 4
INITIAL START-UP:
CHECK THE PUMP AND WELL PERFORMANCE BEFORE MAKING FINAL CONNECTION TO TANK.
1. With all electrical connections complete and pump now lowered to desired depth, install a gate valve in the
discharge pipe near well for preliminary test run. Partially open the valve.
2. Turn on power to start the pump.
 3. Openvalvegraduallytogivefullow.
4. If the water is not clear, let the pump run until water clears. If water does not clear in 30 minutes, stop pump and
take necessary steps to correct the condition. After the water has appeared clear, check for sand by discharging
into a clean bucket.
 5. Closevalveuntilmaximumrequiredsystemsowrateisobtained.Ensurethatthepumpdoesnotlowerthe
water in well to a point where the pump loses prime.
6. Remove gate valve for permanent installation to tank.
CONNECTING TO PRE-CHARGED TANK:
See Fig. 1 for installation diagram.
1. Check air pre-charge in tank before starting pump. Adjust pre-charge to 2 PSI below pump cut-in setting.
2. The pressure tank should be as close as possible to the pressure switch. Connect all piping as shown in diagram.
3. Start pump. Pressure in tank will build up to cut-off pressure of pressure switch setting. The system should now
operate automatically.
CONTROLLING WEAK WELLS:
A weak (low-yielding) well exists when the output rate from the pump is greater than the recovery rate (yield) of the well.
It can lower the water level in the well to the pump suction screen, causing a mixture of air and water to enter the pump.
Pumpingmaystopbecausethepumpcannotgeneratepressurewithinsufcientwater.Ifthisoccurs,thecolumnofwater
already in the drop pipe holds the pumps check valve closed and an airlock may develop inside the pump. An airlock
inside the pump creates inadequate lubrication and cooling for the pump stages and motor. Damage can result if the
power is not cut off quickly. Use one or more of the following methods to correct and/or protect this installation:
1. If possible, install additional length of drop pipe to place pump lower in the well.
2. Install a PUMPSAVER electronic motor load sensing device.
 3. Removethepump“built-in”orexternalmountedcheckvalve,andinstallaspring-loadedcheckvalve5to10ft.
maximum above the pump discharge. Moving the check valve this distance above the pump provides a column of
drop pipe for air to escape to as the pump attempts to prime after well recovery.
 4. InstallaDoleowcontrolinthedischargepipebefore(upstreamfrom)thepressureswitchandtank.Thisrestricts
the output rate from the pump, delivering a constant capacity regardless of pump discharge pressure and rate of
  waterdrawnfromthepressuretank.Theusualwaytodeterminewhatsizeofowcontroltouseistothrottlethe
discharge gate valve to a capacity that the well will yield without drawing down. After pump has operated at this
  capacityforasufcienttimetobesureitissuitable,measuretheowingallons-per-minuteandselectaow
control size nearest to this capacity. A tank with larger draw-down capacity (gallons) should be considered for
more water storage.
 5. Installapumpwithalowerowratingtoavoidoverpumpingthewell.Havethedealersizepumptothewellyield.
6. A low-pressure cut-off switch may be considered, but only for shallow wells. Low-pressure cut-off switches detect
loss of pressure at the surface (at the pressure tank), but an air lock could have already formed inside the pump
deep down the well.
INSTALLATION IN LAKE, POND, STREAM OR FOUNTAIN:
A submersible pump is usually isolated at the bottom of a well, where electrical leakage from its motor and cable present
no hazard to life. This natural protection is lost when you install it in a lake, pond, stream or fountain since there is no way
to prevent people and livestock from entering or touching the surrounding water. We strongly recommend that such an
installation be done by a licensed electrician in conformance with all national and local electrical codes.
Grounding as instructed previously in this manual is a minimum requirement, and a ground fault circuit interrupter should
be considered. If there are no explicit national or local regulations, ask the local electric utility company for guidance.
The pump is designed to be mounted in the vertical, motor “shaft-up” position. If the pump must be mounted “shaft-
horizontal”,supportthepumpfromtheshoreorbottom,withtheshaftup15°fromthehorizontal,forpropermotorbearing
lubrication, and also reduce the number of starts to less than 10 per 24 hr. period to maintain normal motor thrust bearing
life expectancy. Use an external spring-loaded check valve on the pump discharge connection (internal non-spring-loaded
pump check valves are only useful for vertical installations) Shield the pump from direct physical contact. Protect pump
intakefromblockagebyleavesandweeds,butrememberthatthepumpneedsadequateowoverthemotorforproper
cooling.Aowinducersleeveshouldbeusedinanyopenbodyofwater.Consultfactory.Furthermore,alwaysprotectthe
entire underwater installation from water currents, ice, boats, anchors, debris, etc..