Installation Guide
3
IMPORTANT INSTRUCTIONS BEFORE INSTALLATION
FAILURE TO FOLLOW THESE INSTRUCTIONS MAY CAUSE 
SERIOUS BODILY INJURY AND/OR  PROPERTY DAMAGE.
1.  All piping and electrical wiring must adhere to state and local 
codes. Check with appropriate community agencies, or contact 
your local electrical and pump professionals.
2.  Install tank as close as possible to the pump pressure switch 
to reduce friction loss and elevation difference between the  
tank, water supply main, and switch.
3.  After installation, be sure the pressure switch is set low enough 
to shut the pump off. If all valves are closed and the pressure 
switch setting is too high, the pump will run continuously 
without water ow causing overheating and damage to the 
pump.
4.  A pressure relief valve must be installed in the piping adjacent 
to the Well Tank.
5.  The following may cause severe damage to tank and/or piping 
and will void warranty.
•  Failure to protect tank against below-freezing 
temperatures.
•  Pumping chemicals or corrosive liquids.
•  Pumping gasoline or other ammable liquids.
•  Operation at pressures greater than rated pressure 
on data plate with no relief valve.
•  Pumping liquids hotter than 120°F.
Improper installation, adjustment, alteration, service or maintenance 
can cause DEATH, SERIOUS BODILY  INJURY, OR PROPERTY 
DAMAGE. Refer to this manual for further assistance.
This Well Tank is designed and intended for cold (ambient 
temperature) water storage at a maximum pressure of 100-150 
PSIG, depending on your tank model, any use other than with 
cold water, or at a sustained or instantaneous pressure in excess 
of 100-150 PSIG depending on your tank model is UNSAFE. A 
pressure relief valve of adequate size must be incorporated in the 
system. The relief valve must be selected to pass the full capacity 
of the pump when the pressure in this tank is 100 PSIG or more. 
Consult pump manufacturer for pump capacity at relief pressure. 
The manufacturer of this tank does not accept any liability or other 
responsibility for personal injury or property damage resulting 
from improper use, installation, or operation of this tank, or of the 
system of which it is a part.
Failure  to  follow these  instructions  can cause  the tank to 
explode and result in DEATH, SERIOUS BODILY INJURY, 
OR  PROPERTY  DAMAGE.
Depending on your tank model, install a 150 P.S.I. or less pressure 
relief valve directly into a tting of the plumbing. Position the valve 
downward and provide piping so that any discharge will exit only 
within 6 inches above, or at any distance below the structural 
oor. Be certain that no  contact is made with any live electrical 
part. The discharge opening must not be blocked or reduced in 
size under any circumstances. Excessive length, over 15 feet, or 
in use of more than two elbows can cause restriction and reduce 
the discharge capacity of the valve.
No valve or other obstruction is to be placed between the relief valve 
and the tank nor in the discharge line. Do not connect piping directly 
to discharge drain unless a 6” air gap is provided. To prevent bodily 
injury or hazard to life, the relief valve must be able to discharge 
large quantities of water should circumstances demand. If the 
discharge pipe is not connected to a drain or other suitable means, 
the water ow may cause property damage.
The Discharge Pipe:
•  Must not be smaller in size than the outlet pipe size of the 
valve, or have any reducing couplings or other restrictions.
•  Must not be plugged or blocked.
•  Must be installed so as to allow complete drainage of 
both the pressure relief valve, and the discharge pipe.
•  Must not have any valve between the relief valve and 
tank.
The complete pump, tank, pressure relief valve, pressure switch 
and  piping  system  MUST  be  protected  against  below  freezing 
temperature. Failure to do so could cause the tank to explode and 
result in DEATH, SERIOUS BODILY INJURY, OR  PROPERTY 
DAMAGE.
The well tanks are designed for operation on water systems with 
working pressure not to exceed 100-150 PSIG, depending on your 
tank model. Pressure exceeding this could become hazardous, 
and will void any and all guarantees, either written, or implied.
IMPORTANT
It will be necessary to expel all air from piping after new 
installations, repriming and after pumps have been disassembled 
for repair. To purge the air, rst open a faucet the greatest distance 
from the pump. With the pump being allowed to run, wait until a 
steady stream of water is coming from the faucet. At this time, 
close the faucet for several short intervals.
If, after this, air in the lines still occurs, check on the suction side 
of the pump for piping leaks.
When standard type tanks are replaced with this tank, all air 
charging devices, bleeder orices, and air volume controls must 
be removed.
The pump tank has been shipped with a factory precharge as 
indicated on Table 1. If your pump start-up pressure is different 
from the factory precharge, adjust the tank pressure with the tank 
empty to your pump start-up pressure. This can be accomplished 
by simply bleeding air from valve in the top of the tank with an 
accurate pressure gauge. Using the same standard air charging 
valve in the top tank, a tire pump can be used to raise the tank 
pressure. Raise the pressure slowly, checking it periodically 
with an accurate tire pressure gauge, until the desired pressure 
is reached.










