PRESSURE TANK CONNECTION
3. Add lengths of pipe until the ejector reaches the
proper depth. (Your well driller should supply this
infor-mation.)
NOTICE:
As a guide, the ejector should be set at least
10 to 20 feet below the lowest water level with pump
running, if possible, but always at least 5 feet above the
bottom of the well (see Figure 9, Page 7).
4. To properly seat the cup seals, after the ejector is
correctly positioned move the assembly up and
down slightly. Water pressure in the casing will then
soak the cup seals (see Figure 9). They should seal
in 2–3 hours after installation.
5. With ejector set, install well casing adapter. Remove
pipe holder. Align locating lugs and tighten adapter
to form seal with well casing.
Discharge Pipe Sizes
1. If increasing discharge pipe size, install reducer in
pump discharge port. Do not increase pipe size by
stages.
2. When the pump is set away from the points of
water use, the discharge pipe size should be in-
creased to reduce pressure losses caused by fric-
tion.
• Up to 100 ft run: 1”
• 100 ft. to 300 ft run: 1-1/4”
• 300 ft. to 600 ft run: 1-1/2”.
Pressure Tank Installation - Deep Well
The Pressure Tank provides a reservoir of water under
pressure and maintains cushion of air pressure to pre-
vent pipe hammering and possible damage to plumb-
ing components. When water is drawn off through
house fixtures, the pressure in the tank is lowered and
the pressure switch starts the pump.
Standard Tank Connection
When a standard tank is used, an air volume control
(AVC) adds air to the tank when it is needed. See Figure
11 for typical standard tank installation. To connect
AVC to pump, thread a 1/8” compression fitting into
tapped hole on the front of the pump. Cut tubing to
length to reach AVC; assemble to fitting on pump and
to AVC on tank. See installation instructions provided
with tank and AVC for details.
Precharged Tank Connection
When a precharged tank is used, no AVC is necessary.
See Figure 12 for typical precharged tank installation.
A precharged tank contains a factory provided air
charge.
NOTICE:
Your pump pressure switch is set for a 40-60
PSI range and requires a tank pre-charge of 40 PSI for
proper operation (see Figure 13). See tank owner’s air
charge. An annual check on tank charge is recom-
mended.
8
2355b 0697nc
Pressure
Regulator
Air Volume Control Tubing/Fitting
Sears Stock No. 27881
Figure 11 – Pump With Standard Tank
To Service
Pump to Tank Piping
1” Discharge
TANK
Air Volume Control
Sears Stock No. 2761
Relief Valve Sears
Stock No. 27229
Well Seal
AVC Fitting
1054 0697nc
10
20
30
Figure 13 – Checking Tank Pre-charge
Check Pressure with
Tire Gauge
Captive-Air® Tank
20
100
80
60
40
2358b 0697nc
Figure 12 – Pump With Captive-Air
®
Tank
Pressure
Regulator
Piping Tee and
1” Discharge
Relief Valve
To Service
TANK
