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Discharge Pipe and Pressure Tank Connections 6
For parts or assistance, call Simer Customer Service at 1-800-468-7867
Tank Pre-Charge
NOTICE: Be sure that power to the pump is OFF when
checking the tank’s precharge.
Check the pre-charge of air in the tank with an ordinary
tire gauge. The pre-charge should be 2 PSI less than the
cut-in setting of the pump’s pressure switch. The pre-
charge is measured when there is no water pressure in
the tank. Your new pump has a 30/50 PSI switch, so
adjust the tank pre-charge pressure to 28 PSI.
Congratulations! You have just completed the tank
connection for your jet pump. Please go to Electrical for
electrical hookup.
Sealing Pipe Joints
Use only PTFE pipe thread sealant tape or PTFE-
based joint compounds for making all threaded
connections to the pump itself. Do not use pipe joint
compounds on plastic pumps: they can react with
the plastic in pump components. Make sure that all
pipe joints in the suction pipe are air tight as well as
water tight. If the suction pipe can suck air, the pump
will not be able to pull water from the well.
1
2
3
45
1. Tank nearly empty – air expands filling area above
vinyl water cell.
2. Water begins to enter tank – air is compressed above
water cell as it fills with water.
3. Pump-up cycle completed – air now compressed to
cut off setting of pressure switch.
4. Water being drawn from tank – compressed tank air
forces water out of water cell.
5. Water cell completely empty – new cycle ready
tobegin.
Figure 3
Water
Water
Water
Tank Pumping Cycle