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OWNER’S

MANUAL

Submersible

Pumps

Two and Three Wire,

1/2 thru 3 HP, 60 Hz.

NOTICE

D’UTILISATION

Pompe

submersible

à deux et trois fils,

de 1/2 à 3 ch, 60 Hz

MANUAL DEL

PROPIETARIO

Bombas

sumergibles

de dos y tres hilos

1/2 a 3 CV, 60 Hz

PENTAIR WATER, Delavan, WI 53115

Carefully read and follow all safety instructions

in this manual or on pump.

This is the safety-alert. When you see this

symbol on your pump or in this manual,

look for one of the following signal words and

be alert to the potential for personal injury.

warns about hazards that will

cause serious personal injury, death or major

property damage if ignored.

warns about hazards that can

cause serious personal injury, death or major

property damage if ignored.

warns about hazards that will or

can cause minor personal injury or property

damage if ignored.

The word NOTICE indicates special instructions

which are important but not related to hazards.

To avoid serious or fatal personal injury and

possible property damage, carefully read and

follow the safety instructions.

1. Hazardous pressure. Under

certain conditions, submersible pumps can

develop extremely high pressure. Install a

pressure relief valve capable of passing entire

pump flow at 75 PSI (517 kPa) when using an

air over water pressure tank. Install a pressure

relief valve capable of passing entire pump

flow at 100 PSI (690 kPa) when using a pre-

charged pressure tank.

Do not allow pump, pressure tank, piping,

or any other system component containing

water to freeze. Freezing may damage system,

leading to injury or flooding. Allowing pump or

system components to freeze will void warranty.

2. Hazardous voltage. Can shock,

burn or cause death. To avoid dangerous or

fatal electric shock hazard, use pump only in

a water well.

Risk of dangerous or fatal elec-

trical shock. Do not install this pump in any

pond, river, or other open body of water that

could be used for swimming or recreation.

Do not swim, wade or play in a body of

water in which a submersible pump has

been installed.

Install, ground and wire pump according

to local code and National Electrical Code

requirements.

Disconnect electrical power supply before

installing or servicing pump.

Make sure line voltage and frequency of

power supply match motor nameplate voltage

and frequency.

3. Install pump according to all plumbing, pump

and well code requirements.

4. Test well water for purity before using well.

Call your local health department for testing

procedure.

5. During installation, keep well covered as

much as possible to prevent leaves and foreign

matter from falling into well. Foreign objects

in well can contaminate the water and cause

serious mechanical damage to the pump.

6. Pipe joint compound can cause cracking in

plastics. Use only teflon tape when sealing

joints in plastic pipe or connecting pipe to

thermoplastic pumps.

TABLE OF CONTENTS

Safety Instructions . . . . . . . . . . . . . . . . . . . . . .2

Pre-Installation . . . . . . . . . . . . . . . . . . . . . . . .2

Electrical . . . . . . . . . . . . . . . . . . . . . . . . . . .2-6

Installation . . . . . . . . . . . . . . . . . . . . . . . . . . .6

Initial Startup . . . . . . . . . . . . . . . . . . . . . . . .6-7

Connecting to Tank/Water System . . . . . . . . . .7

Troubleshooting Guide . . . . . . . . . . . . . . .10-11

Warranty . . . . . . . . . . . . . . . . . . . . . . . . . . . .12

PRE-INSTALLATION

Inspect pump and motor for delivery damage.

Report any damage immediately to the shipping

carrier or to your dealer.

The well driller should thoroughly develop the

well (that is, pump out all fine sand and foreign

matter) before pump is installed. See Initial

Start-Up, Page 6.

Pump performance is based on pumping clear,

cold, liquid water with no entrained air.

Warranty is void in the following conditions:

• If pump has pumped excessive sand – exces-

sive sand can cause premature wear to pump.

• If water is corrosive.

• If entrained gas or air are present in the water

being pumped – these can reduce flow and

cause cavitation which can damage pump.

• If pump has been operated with discharge

valve closed – severe internal damage will

result.

Install pump at least 15 to 20' (4.5 to 6M) below

the lowest water level reached with pump run-

ning (lowest draw-down water level), and at

least 5' (1.5M) above the bottom of the well.

GROUNDING:

Hazardous voltage. Can shock,

burn, or cause death. Permanently ground

pump, motor and control box before connect-

ing power supply to motor.

Ground pump and motor in accordance with the

local codes and ordinances. Use a copper

ground wire at least as large as wires carrying

current to motor.

Motor is supplied with a copper ground wire.

Splice this ground wire to a copper conductor

that matches motor wire size specified in

Table III. See Page 5 for wire splicing

instructions.

Permanently ground pump, motor and control

box before connecting power cable to power

supply. Connect ground wire to approved

ground first and then connect to equipment

being installed.

Do not ground to a gas supply line.

Fire and electrical shock hazard. If

using a drop wire larger than No. 10 (5.5mm2)

(for example, No. 8 (8.4mm2) wire) between

pump and control box, run wire to a separate

junction box. Connect junction box to control

box with a No. 10 (5.5mm2) or smaller wire

(depending on amp rating of pump – see

Table III).

For more information, contact your local code

officials.

WIRING CONNECTIONS:

All wiring must meet National Electrical Code or

Canadian Electrical Code and local code

requirements.

Use only copper wire when making connections

to pump and control box.

To avoid over-heating wire and excessive voltage

drop at motor, be sure that wire size is at least as

large as size listed in Table III for your horse-

power pump and length of wire run.

NOTICE: When built-in overheating protection

is not provided, use with an approved overload

equipped motor control that matches motor

input in full load amps. Select or adjust overload

element(s) in accordance with control instruc-

tions. When built-in overheating protection is

provided, use with an approved motor control

that matches motor input in full load amperes.

TABLE I: Recommended Fusing Data - 60 Hz.,

Single Phase, 3 Wire Submersible Pump Motors

TABLE II:

Recommended Fusing Data - 60 Hz.,

Single Phase 2 Wire Submersible Pump Motors

INSTALLATION WIRING DIAGRAMS -

SINGLE PHASE, 3 WIRE

For motors of 11⁄2HP and above,

use magnetic starter to avoid damage to pressure

switch. Consult factory for wiring information.

See Page 4 for 2 Wire Hookup.

Hazardous voltage. Can shock,

burn, or kill.

Ground control box, all metal plumbing, and

motor frame with copper wire in compliance

with local codes. Use a ground wire at least as

large as the wires supplying power to motor.

Permanently close all unused openings in this

and other equipment.

Disconnect power to control box before working

on or around control box, pipes, cable, pump,

or motor.

Fuse Size

HP Volts Stand Dual Elem.

1/2 115 30 15

1/2 230 15 7

3/4 230 20 9

1 230 25 12

1.5 230 30 15

2 230 30 15

3 230 45 30

Fuse Size

HP Volts Stand Dual Elem.

1/2 115 30 15

1/2 230 15 7

3/4 230 20 9

1 230 25 12

14 12 10 8 6 4 3 2 1 0

Volts HP (2mm2) (3mm2) (5mm2) (7mm2) (13mm2) (21mm2) (25mm2) (34mm2) (41mm2) (50mm2)

115 1/2 100 160 250 390 620 960 1190 1460 1780 2160

(30.5) (48.8) (76.2) (118.9) (189) (292.6) (382.7) (445) (542.5) (638.4)

1/2 400 650 1020 1610 2510 3880 4810 5880 7170 8720

(121.9) (198.1) (310.9) (490.7) (765) (1182.6) (1466.1) (1792.2) (2185.4) (2657.9)

3/4 300 480 760 1200 1870 2890 3580 4370 5330 6470

(91.4) (146.3) (231.6) (365.8) (570) (880.9) (1091.2) (1332) (1624.6) (1972.1)

1250 400 630 990 1540 2380 2960 3610 4410 5360

230 (76.2) (121.9) (192) (301.8) (469.4) (725.4) (902.2) (1100.3) (1344.2) (1633.7)

1-1/2 190 310 480 770 1200 1870 2320 2850 3500 4280

(57.9) (94.5) (146.3) (234.7) (365.8) (570) (707.1) (868.7) (1066.8) (1304.5)

2150 250 380 620 970 1530 1910 2360 2930 3620

(45.7) (76.2) (118.9) (189) (295.6) (466.3) (582.2) (719.3) (893.1) (1103.4)

3120 190 300 470 750 1190 1490 1850 2320 2890

(36.6) (57.9) (91.4) (143.3) (228.6) (362.7) (454.2) (563.9) (707.1) (880.9)

TABLE III: Power Supply Wire (Cable) Length in Feet (M)

1 Phase, 2 or 3 Wire Cable, 60 Hz (Copper Wire Size - Service to Motor)

To be sure that starting relay will function and

that overload will not “nuisance trip”, install

control box vertically with top side up.

Wire control box as shown in Figures 1A and

1B. A 3-wire pump will not operate without

control box. Operation without control box will

burn out 3 wire motor.

Installation must include circuit and component

protection which meet local code and United

States National Electrical Code requirements.

If main overload trips, look for:

1. Shorted Capacitor

2. Voltage Problems

3. Overloaded or locked pump.

NOTICE: Match motor to control box as shown

below. Motor and control box model numbers

may include additional suffix numbers to the

right of the numbers shown here. These addi-

tional numbers are not important for control box

selection.

TABLE IV: Control Box Selection

HP Voltage Motor No. Control Box No.

1/2 115 214504 28010449

1/2 230 214305 28010549

214505

3/4 230 214307 28010749

214507

1 230 214308 28010849

214508

1-1/2 230 214300 28230081

2 230 224301 28230181

28230183

3 230 234 316 52 28230281

28230283

L1 M1

M2L2

Sub.

Motor

Control

L1L2R Y B

Fused

disconnect

switch

115V or

230V Line Ground

Red

Yellow

Black

Pressure

switch

Well

casing

Ground

699 0993

FIGURE 1A - 3-wire, 1/2 thru 1 HP quick disconnect

box. Follow color coding when connecting control box

(Yellow to Y, Red to R, Black to B).

L1 M1

M2L2

Fused

Disconnect

Switch

To Line Ground

Red

Black

Pressure

Switch

Well

Casing

Ground

(Green)

336 1093

FIGURE 1B - Single phase, 2-wire connections. 2-wire

pumps have two power supply wire (Red/Black) and

one ground wire (Green). Control box is not required.

See Figure 1B for correct hook-up information for 230

volt 2-wire motors only.

Installation

WIRE SPLICING:

1. Splice wire to motor leads. Use only copper

wire for connections to pump motor and

control box.

1. Taped splice (Wire sizes No. 8 (8.4mm2)

and larger):

A. Cut off motor leads. Stagger lead and

wire length so that 2nd lead is 2"

(50mm) longer than 1st lead and 3rd

lead is 2" (50mm) longer than second.

B. Match colors and lengths of wires to

colors and lengths of motor leads.

C. Trim insulation back 1/2" (13mm) from

cable ends and motor lead ends.

D.Insert motor lead ends and cable ends

into butt connector (see Figure 2). Match

wire colors between supply wires and

motor leads.

E. Using crimping pliers (Figure 5), indent

butt connector lugs.

F. Cut “Scotchfil” electrical insulation putty

into 3 equal parts and form tightly

around butt connectors. Be sure scotch-

fil overlaps insulated part of wire.

G. Using #33 Scotch tape, wrap each joint

tightly; cover wire for about 11⁄2" (38mm)

on each side of joint. Make four passes

with the tape. In other words, when fin-

ished you should have four layers of

tape tightly wrapped around the wire.

Press edges of tape firmly down against

the wire (see Figure 6).

NOTICE: Since the tightly wound tape is

the only means of keeping water out of

the splice, the efficiency of the splice

will depend on the care used in wrap-

ping the tape.

NOTICE: For wire sizes larger than #8,

(7mm2) use a soldered joint rather than

Scotchfil putty (see Figure 4).

2. Heat-shrink splice (For wire sizes #14, 12

and 10 AWG, or 2, 3, and 5.5mm2):

A. Remove 3/8" (9.5mm) insulation from

ends of motor leads and power supply

wires.

B. Put plastic heat shrink tubing over motor

leads between power supply and motor

(see Figure 7).

C. Match wire colors and lengths between

power supply and motor.

D.Insert supply wire and lead ends into

butt connector and crimp (See Figures 2

and 3). Match wire colors between

power supply and motor. Pull leads to

check connections.

E. Center tubing over butt connector and

apply heat evenly with a torch (a match

or lighter will not supply enough heat).

NOTICE: Keep torch moving. Too much

concentrated heat may damage tubing

(see Figure 7).

COMPLETED SPLICE

1/2"

(12.7mm) BUTT CONNECTOR

INDENT HERE

ALTERNATE METHOD

TWIST AND SOLDER

NOTCH

CONNECTOR

HEAT SHRINK TUBING

21"

INSULATOR BODY

CENTERED OVER SPLICE

END CAP

GASKET

INSULATOR BODY

GASKET SLEEVE IN PLACE

CAP SCREWED ON

BUTT CONNECTOR OR

CRIMP OR SOLDER

12.7mm 12.7mm

FIGURE 2

FIGURE 3

FIGURE 4

FIGURE 5

FIGURE 6

FIGURE 7

FIGURE 8

FIGURE 9

FIGURE 10

3. Mechanical Splice Kit with plastic insula-

tors (for 14, 12 and 10 Gauge AWG Wire,

or 2, 3 and 5.5mm2wire):

A. Cut off motor leads. Stagger lead and

wire length so that 2nd lead is 4"

(101.6mm) longer than 1st lead and 3rd

lead is 4" (101.6mm) longer than sec-

ond.

B. Cut off wire ends. Match colors and

lengths of power supply wires to colors

and lengths of motor leads.

C. Trim insulation back 1/2" (13mm) from

cable ends and motor lead ends.

D.Unscrew plastic caps from insulators.

Place a cap and a neoprene gasket

sleeve on each wire end to be spliced

(see Figure 8).

E. Slide insulator body onto one wire end

(Figure 8).

F. Insert wire end into butt connector and

crimp. Match cable and motor wire col-

ors (see Figure 9).

G.Center insulator body over splice and

slide neoprene sleeves into body as far

as they will go. Screw caps onto insula-

tor body (Figure 10) and tighten by hand

for a strong, waterproof splice.

POWER SUPPLY WIRE INSTALLATION

1. To test submersible, momentarily (no more

than 30 seconds) connect it to proper power

supply. Power supply frequency and voltage

must match motor nameplate frequency and

voltage to within ±10%.

2. Fasten power supply wires leads securely to

pump discharge section; leave 4-5" (100-

125mm) of slack in leads at this point.

Securely fasten leads to plastic pipe within 6"

(150mm) of the pump discharge section. Use

centering guides to protect wire and pipe

from rubbing the well casing.

3. Connect copper ground wire to motor brack-

et. Ground wire must be at least as large as

wires supplying current to motor. Consult

local codes for grounding information.

4. Use only submersible power supply wires

supplied by pump manufacturer. When low-

ering pump into well, secure supply wires to

discharge pipe at 10' (3.5M) intervals with

Scotch #33 electrical tape. DO NOT damage

pump wires.

NOTICE: To avoid dropping the pump down

the well or damaging cable or cable splices,

NEVER allow pump cable to support weight

of pump.

PUMP INSTALLATION

1. If a standard air over water pressure tank is

used, install two bleeder orifices about 2'

(.6M) apart as shown in Figure 13, Page 14.

Orifices will automatically charge the tank

with air. See Figure 13 to determine orifice

location.

NOTICE: If Pre-charged tank is used, DO

NOT install bleeder orifices. If pump and pre-

charged tank are replacing a standard tank

system, remove bleeder orifices before

installing pump in well.

2. To prevent losing pump down the well, con-

nect a safety rope strong enough to support

pump and drop pipe (minimum 5/16" (8mm)

twisted polypropylene or pronila rope) to eye-

let on pump discharge. Tie off other end of

safety rope securely to well seal, well cap or

pitless adapter.

3. Discharge outlet is 11⁄4” NPT threaded.

Use 100 PSI rated polyethylene plastic pipe

for installations up to 100’ (30.5M) depth.

Use 160 PSI rated polyethylene plastic pipe

for installation up to 220’ (67.1M) depth.

For depths beyond 220’ (67.1M), use galva-

nized steel pipe for the entire drop pipe.

INITIAL START-UP/NEW WELLS

NOTICE: NEVER operate pump with discharge

valve completely closed. Pump can destroy itself

if run with discharge shut off (“deadheaded”) and

warranty will be void.

NOTICE: To avoid sand-locking pump, follow

procedure below when starting pump for the

first time. NEVER start a pump with discharge

completely open unless you have done this pro-

cedure first.

1. Connect a pipe elbow, a short length of pipe

and a gate valve to pump discharge at well

head (see Figure 11).

Control

center

electrical

disconnect

box

Temporary wiring

to control center or

electrical disconnect box

Temporary piping

Gate valve

Pump in well

Pump installation

for developing a well

689 0993

FIGURE 11 - Temporary connections while

cleaning well for start-up.

2. Mount motor control box (3-wire pump) or

fused disconnect switch (2-wire pump) in a

permanently weather proof place. Make sure

that controls will not be subjected to

extreme heat or excess moisture.

3. Make sure controls are in OFF position.

4. Connect motor leads and power supply

wires to motor control box or magnetic

starter (see Wiring Diagrams). DO NOT

START PUMP YET.

5. Set gate valve on discharge 1/3 open; start

pump (see Figure 11).

6. Keep gate valve at this setting while water

pumps out onto ground. Let it run until water

is clear of sand or silt. (To check solids in

water, fill a glass from pump and let solids

settle out).

7. When water is completely clear at 1/3 set-

ting, open gate valve to approximately two-

thirds open and repeat process.

8. When water is completely clear at 2/3 set-

ting, open gate valve completely and run

pump until water is completely clear.

9. Remove gate valve for permanent installation

near tank (see Figures 12 and 13, Pages 8

and 9).

10.Install sanitary well seal or pitless adapter

unit, well unit, electrical conduit and surface

piping according to local code requirements

that apply.

CONNECTING TO TANK/WATER SYSTEM

Hazardous pressure. Submersible

pumps can develop very high pressure in some

situations. To prevent tank blowup, install a

pressure relief valve able to pass full pump flow

at 75 PSI (517kPa) when using an air over

water pressure tank. Install a pressure relief

valve capable of passing entire pump flow at

100 PSI (690 kPa) when using a pre-charged

pressure tank. Install this relief valve between

pump and tank.

Pipe joint compound can cause

cracking in plastics. Use only teflon tape on

joints in plastic pipe.

NOTICE: Allowing pump or piping system to

freeze may severely damage pump and will void

warranty. Protect pump and entire piping system

(including pressure tank) from freezing.

Pre-charged Pressure Tank Hookup:

See Figure 12, Page 8 for piping connections to

pre-charged pressure tank.

NOTICE: Check air pre-charge in tank before

starting pump. Adjust pre-charge to 2 PSI below

pump cut-in setting. (For example, a pre-charge

tank used with a 30-50 switch should be pre-

charged with air to 28 PSI. Adjust pre-charge by

either adding or bleeding air through tire valve

located on top of tank. Check pre-charge annu-

ally and adjust as needed.

Standard Tank Hookup:

See Figure 13, Page 9 for piping connections to

standard pressure tank and for correct distance

of bleeder orifices from pressure tank.

Important Electrical

Grounding Information

Hazardous voltage. Can shock,

burn, or kill. To reduce the risk of electrical

shock during pump operation, ground and

bond the pump and motor as follows:

A. To reduce risk of electrical shock from metal

parts of the assembly other than the pump,

bond together all metal parts accessible at the

well head (including metal discharge pipe,

metal well casing, and the like). Use a metal

bonding conductor at least as large as the

power cable conductors running down the well

to the pump's motor.

B. Clamp or weld (or both if necessary) this

bonding conductor to the grounding means

provided with the pump, which will be the

equipment-grounding terminal, the grounding

conductor on the pump housing, or an equip-

ment-grounding lead. The equipment-ground-

ing lead, when provided, will be the conductor

having green insulation; it may also have one

or more yellow stripes.

C. Ground the pump, motor, and any metallic

conduit that carries power cable conductors.

Ground these back to the service by connect-

ing a copper conductor from the pump, motor,

and conduit to the grounding screw provided

within the supply-connection box wiring com-

partment. This conductor must be at least as

large as the circuit conductors supplying the

pump.

Save these instructions.

VENTILATED

WELL CAP

SUBMERSIBLE

CABLE

PITLESS

ADAPTOR

CHECK

VALVE

TAPE CABLE

TO PIPE

PUMP

CONTROL BOX

(3WIRE MODELS)

ELECTRICAL DISCONNECT

PRE-CHARGED TANK

PRESSURE SWITCH

PRESSURE GAUGE

TO HOUSE SERVICE

RELIEF

VALVE

UNION

GATE VALVE

FIGURE 12 – Typical Submersible Installation with Pre-charged Tank Installation

Cut-In PSI Cut-Off PSI Pre-charge Pressure

20 (138 kPa) 40 (276 kPa) 18 PSI (124 kPa)

30 (207 kPa) 50 (345 kPa) 28 PSI (193 kPa)

40 (276 kPa) 60 (414 kPa) 38 PSI (262 kPa)

PITLESS

ADAPTOR

CHECK VALVE

BLEEDER

ORIFICE

& TEE

PIPE

COUPLING

TAPE CABLE

TO PIPE

PUMP

VENTILATED

WELL CAP

SUBMERSIBLE

CABLE

UNION

CONTROL BOX

(3 WIRE MODELS) ELECTRICAL DISCONNECT

PRESSURE GAUGE

AIR VOLUME CONTROL

PRESSURE SWITCH

TO HOUSE SERVICE

GATE VALVE

RELIEF VALVE

2 ft.

(.6m)

SEE TABLE

FIGURE 13 – Standard Pressure Tank Installation

CHECK VALVE DISTANCE TO TOP BLEEDER ORIFICE

TANK SIZE DISTANCE

42 Gallon (159L) 2' (.6M)

82 Gallon (310L) 3' (.9M)

120 Gallon (454L) 5' (1.4M)

220 Gallon (833L) 5' (1.4M)

315 Gallon (1192L) 10' (3.0M)

525 Gallon (1987L) 15' (4.6M)

PROBLEM CHECK CORRECTIVE ACTION

Motor will not start but

fuses do not blow

No voltage. No voltage at fuse box. Replace blown fuses.

No voltage at pressure switch. Replace faulty pressure switch.

No voltage at control box. Rewire supply to control box.

Cable or splices bad. Consult licensed electrician or serviceman.

Control box incorrectly wired. Reconnect control box correctly (see wiring

diagrams, Pages 6 through 8).

Fuses blow or overload

protector trips when

motor starts

Wrong size fuse or wrong Check fuse size against Tables II and III, Install correct fuse or time delay fuse.

size time delay fuse. Pages 3 and 4.

Wire size too small. Check wire size against Table III, Page 4. Install correct size wire.

Starting capacitor Check control box to see if starting Replace starting capacitor.

defective or blown. capacitor has blown out.

Low or high voltage. Check that line voltage is within ±10% of If voltage variation is greater than ±10%, call

nameplate rated voltage while motor is power company to adjust voltage.

running.

Cable leads not correctly Check control box wiring diagram Reconnect leads to match wiring diagram in

connected to control box. against incoming power hookup. control box cover.

Check drop cable color coding. Reconnect drop cable so cable color code

matches motor lead color code.

Broken wire in control Examine all connections and wiring in Disconnect power and repair or replace faulty

box. control box. wire.

Pump or motor stuck or Check for locked rotor in pump. If necessary, pull pump (make all possible

binding. above ground checks first). If pump is locked,

replace it. Clean well of all sand or lime before

reinstalling pump.

Fuses blow or overload

protector trips when

motor is running

Low or high voltage. Check that line voltage is within ±10% of If voltage variation is more than ±10%, call

rated nameplate voltage while motor is power company to adjust voltage.

running.

High ambient Check temperature of control box. Do not mount control box in direct sunlight.

(atmospheric temperature).

Control box with wrong Compare voltage and horsepower on Replace control box if numbers do not match.

voltage or horsepower motor nameplate with those given on

rating. control box nameplate or on circuit

diagram inside control box cover.

Wire size too small. Check wire size against Table III, Page 4. Install correct wire size.

Cable splices or motor Consult licensed electrician or qualified Do not attempt to disassemble pump or motor.

leads grounded, shorted, serviceman.

or open.

Pump starts too

frequently

Leaks in system. Check all tank connections with System must be air and water tight.

soapsuds for air leaks. Check plumbing

for leaks.

Pressure switch. Check for defective switch or switch out Re-adjust or replace pressure switch.

of adjustment.

Tank waterlogged. Pre-charged tanks; check tank pre- Pre-charge tanks: adjust air pressure to 2 PSI

charge air pressure, check for leak in (13.8 kPa) less than pump cut-in pressure (when

bladder. there is no water pressure on system).

Replace bladder if necessary.

Air over water tanks: check for air leaks. Air over water tanks: repair or replace tanks;

Check Air Volume Control (AVC). replace snifter valves if necessary.

Check snifter valve operation.

Leak in drop pipe. Raise drop pipe one length at a time Replace pipe above that point.

until water stands in pipe.

Pressure switch too far Measure distance from pressure switch Move switch to within one foot of tank.

from tank. to tank.

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