🛁 Balboa Vico WOW Bath Pump 1010031 — 0.5 HP 115V Whirlpool Bath Pump with Air Switch & NEMA Cord

Ultra-quiet, compact bath pump designed for jetted whirlpool tubs — plug-in ready with built-in air switch

♨️ Product Overview

The Balboa Vico WOW 1010031 is a 0.5 HP single-speed whirlpool bath pump from the Vico-Ultrajet range by Balboa Water Group, designed specifically for the North American jetted bathtub market. This is a dedicated bath pump — not a hot tub jet pump or circulation pump — built for whirlpool tub jet systems where ultra-quiet operation and compact size are essential.

The WOW (Whirlpool Operating Wonder) pump features a self-draining volute that empties after each use, promoting hygienic operation by preventing stagnant water from sitting in the pump between baths. The front/top discharge configuration with bottom suction and center discharge offers flexible installation beneath whirlpool tubs where space is limited.

This pump comes plug-in ready with a 3-foot NEMA power cord (3-prong grounded plug) and a built-in on/off air switch, so no separate electrical controls or timers are needed. The air switch activates the pump with a pneumatic button mounted on the tub deck — the button and air hose are purchased separately. With 1-1/2″ Male Buttress Thread (MBT) connections on both suction and discharge, this pump is compatible with industry-standard whirlpool bath union fittings. The WOW 1010031 is UL and CSA listed, with a 65 GPM flow rate that delivers strong jet performance from a remarkably quiet and compact package.

⚠️ NOTE: This is a whirlpool bath pump for jetted bathtubs. It is NOT a hot tub/spa jet pump or circulation pump. Bath pumps are designed for intermittent use during bathing, not 24-hour continuous operation.

✨ Key Features

• ✅ 0.5 HP Single-Speed Motor — 115V / 60Hz / 5.5A — plug-in ready
• ✅ 65 GPM Flow Rate — Strong jet performance for whirlpool bathtubs
• ✅ Ultra-Quiet Operation — No intrusive pump noise during bathing
• ✅ Self-Draining Volute — Empties after each use for hygienic operation
• ✅ Built-In Air Switch — On/off control via pneumatic deck button (button/hose sold separately)
• ✅ NEMA Power Cord Included — 3-foot cord with 3-prong grounded plug — plugs into standard 115V outlet
• ✅ 1-1/2″ Male Buttress Thread (MBT) — Both suction and discharge — compatible with standard whirlpool union fittings
• ✅ Compact Design — 13.5″ × 4.85″ × 7.2″ — fits tight spaces under whirlpool tubs
• ✅ Multiple Volute Configurations — Flexible installation positioning
• ✅ UL and CSA Listed — Meets North American safety standards
• ✅ 1-Year Manufacturer Warranty — Balboa Water Group warranty coverage

⚙️ Technical Specifications

Specification	Value
Manufacturer	Balboa Water Group / Vico (Vico-Ultrajet)
Model Series	WOW (Whirlpool Operating Wonder)
Part Number	1010031
Current Part Number	1050031 (identical pump, newer packaging)
Pump Type	Whirlpool Bath Pump (Front/Top)
Motor Power	0.5 HP
Speed	Single Speed (1-Spd)
Flow Rate	65 GPM
Voltage	115V
Frequency	60 Hz
Amperage	5.5A
Frame Size	10 Frame
Suction Style	Bottom
Suction Connection	1-1/2″ Male Buttress Thread (MBT)
Discharge Style	Center
Discharge Connection	1-1/2″ Male Buttress Thread (MBT)
Port Outside Diameter	Approximately 2-7/16″
Drain Plug	None (self-draining volute)
Dimensions (L × W × H)	13.5″ × 4.85″ × 7.2″
Discharge Height	6.7″
Weight	20 lbs
Power Cord	3-foot NEMA cord with 3-prong grounded plug (included)
Air Switch	Built-in on/off (included — button and hose sold separately)
Seal Part Number	5190-016
Certifications	UL Listed, CSA Listed
Warranty	1 Year (Manufacturer)

⚡ Electrical Requirements

Electrical Spec	Requirement
Supply Voltage	115V
Frequency	60 Hz
Phase	Single Phase
Full Load Amps	5.5A
Connection	NEMA 3-prong grounded plug (included) — plugs into standard 115V outlet

⚠️ IMPORTANT:

This bath pump comes with a 3-foot NEMA power cord and plugs into a standard 115V grounded outlet. The outlet serving the pump must be GFCI-protected per the National Electrical Code (NEC). The outlet should be accessible but not reachable from the bathtub. A dedicated circuit is recommended — do not share with other high-draw appliances. All electrical work must comply with the NEC and local building codes.

📐 Dimensions & Mounting

Measurement	Value
Length	13.5″
Width	4.85″
Discharge Height	6.7″
Overall Height	7.2″
Weight	20 lbs

The compact 13.5″ × 4.85″ × 7.2″ form factor is specifically designed to fit in the tight spaces beneath whirlpool bathtubs. The front/top discharge configuration with bottom suction allows flexible positioning during installation.

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🔗 Plumbing Connections

Connection	Size	Type
Suction (Intake)	1-1/2″	Male Buttress Thread (MBT) — Bottom
Discharge (Output)	1-1/2″	Male Buttress Thread (MBT) — Center

The inlet and outlet have external buttress threads (approximately 2-7/16″ outside diameter) for use with industry-standard whirlpool bath union fittings. Unions are sold separately.

Compatible Union Fittings (sold separately):

Union Part Number	Description
400-4060	1-1/2″ FBT pump union
400-4200	1-1/2″ FBT pump union
92065	1-1/2″ pump union

💡 TIP: When ordering this pump, also check whether you need replacement union fittings and O-rings. The pump does not include unions — these connect the pump to the whirlpool’s existing plumbing.

🎛️ Air Switch Operation

The WOW 1010031 has a built-in pneumatic air switch for on/off control. Here’s how the system works:

What’s included with the pump: The internal air switch mechanism — built into the pump body.

What you need separately: A pneumatic air button (mounted on the tub deck or surround) and air hose connecting the button to the pump’s air switch port.

How it works: Pressing the air button on the tub deck sends a pulse of air through the hose to the pump’s internal switch, toggling the motor on or off. This pneumatic design keeps all electrical components away from the wet area — the button on the tub deck is purely mechanical (no electricity).

ℹ️ NOTE: If the motor doesn’t start when plugged in, the air switch may be in the “off” position. Press the air button to toggle it on.

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🔄 Part Number Cross-Reference

1010031 vs 1050031 — What’s the Difference?

Nothing. The 1010031 and 1050031 are the exact same pump. The only difference is that the 1050031 comes in a retail box with an updated label. The pump, motor, wet end, air switch, cord, and all specifications are identical. If you’re replacing a 1010031, you can order either part number — you will receive the same pump.

This Pump Replaces

Old Part Number	Notes
1010031	Original Vico WOW part number
1050031	Current Balboa part number (same pump, boxed packaging)
1010115	WOW bath pump variant
PEN1010115	Pentair/legacy variant
PUWWSCAS598R	WOW pump alternate model code
PUWWSCAS798R	WOW pump alternate model code
PUWWSCAS1098R	WOW pump alternate model code
305691	OEM bath pump replacement
310-2110	OEM bath pump replacement
321FF10-0150	Genesis/OEM bath pump
321FF10-1150	Genesis/OEM bath pump
5191-53	OEM bath pump replacement
5191-55	OEM bath pump replacement
5191-56	OEM bath pump replacement
5191-57	OEM bath pump replacement
5191-61	OEM bath pump replacement
612348	OEM bath pump replacement
621347	OEM bath pump replacement
903690403	OEM bath pump replacement
VIC1050031	Vico prefix variant

Compatible OEM Systems (5.5A Bath Pumps)

OEM System	Model Number
G&G Olympian	97111-423
Olympian	97211-423
American Standard	F35A01A03 / 1010007
LX (Lingxiao)	WCA50

⚠️ IMPORTANT: When replacing a bath pump, match the amperage first, not the horsepower. Different manufacturers rate HP differently, but amperage is a consistent and reliable measurement. This pump is 5.5A — verify your existing pump’s amperage before ordering.

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📊 Vico WOW Bath Pump Family — Comparison Guide

Not sure which WOW pump you need? Here’s the full lineup:

Part Number	HP	Amps	Flow Rate	Model	Air Switch	Cord
1050031 / 1010031	0.5 HP	5.5A	65 GPM	WOW	✅ Yes	✅ NEMA
1050032	3/4 HP	7.5A	See manual	WOW	✅ Yes	✅ NEMA
1051057	1.0 HP	9.0A	86 GPM	Power WOW	✅ Yes	✅ NEMA
1034002 / 1074002	1.5 HP	13.5A	See manual	Power WOW	✅ Yes	✅ NEMA

All models in the WOW family share the same basic design: 115V single speed, 1-1/2″ MBT connections, self-draining volute, UL/CSA listed, built-in air switch, and NEMA cord. The differences are in motor power and amperage. Choose based on your existing pump’s amperage rating.

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🛠️ Installation Guide

Before You Begin

1. Disconnect power — Unplug the old bath pump before any work
2. Turn off water supply if applicable (most whirlpool tubs are self-contained)
3. Access the pump — Remove the access panel beneath the whirlpool tub
4. Note the existing plumbing layout — Take photos before disconnecting anything
5. Have towels ready — Some residual water may drain when disconnecting unions

Installation Steps

1. Disconnect the old pump — Unplug the power cord, disconnect union fittings, and remove the pump
2. Position the new WOW pump — Place in the mounting location beneath the tub. The compact 13.5″ × 4.85″ × 7.2″ form factor fits most whirlpool bath installations
3. Connect the plumbing — Thread the union fittings onto the 1-1/2″ MBT ports. Suction (intake) connects to the bottom port; discharge (output) connects to the center/front port
4. Hand-tighten unions — Then snug with a wrench. Do not overtighten
5. Connect the air hose — Run the pneumatic air hose from the tub deck button to the air switch port on the pump
6. Fill the tub — Ensure water covers all jets and the pump is primed before powering on
7. Plug in the pump — Connect the 3-foot NEMA cord to a GFCI-protected 115V outlet
8. Test operation — Press the air button on the tub deck to toggle the pump on. Verify water flows through all jets

Important Installation Notes

⚠️ Never run the pump dry — always fill the tub above the jet level before activating

⚠️ The outlet must be GFCI-protected per NEC requirements

⚠️ Ensure the pump is accessible for future service — do not seal it behind permanent walls

⚠️ The self-draining volute does not require a drain plug — this is by design

⚠️ Union fittings and O-rings are sold separately — check your existing fittings and replace if worn

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🔧 Maintenance Guide

Routine Maintenance:

Task	Frequency	Notes
Inspect for leaks	Monthly	Check union fittings and pump body
Check union tightness	Quarterly	Hand-tighten if loosened
Clean tub jets	Monthly	Remove and clean jet inserts to prevent flow restriction
Flush plumbing lines	Monthly	Run pump for 2-3 minutes with clean water after draining bath products
Verify air switch function	Monthly	Confirm on/off toggle responds promptly
Inspect power cord	Quarterly	Check for damage, cracks, or exposed wire

Warning Signs — Replace Pump If:

• Unusual noise (grinding, screeching, or loud humming)
• Motor doesn’t start when air switch is toggled
• Water leaking from pump body (not unions)
• Reduced jet flow despite clean jets
• Motor trips GFCI breaker repeatedly
• Burning smell from motor area

Replacement Seal:

Part	Part Number
Shaft Seal	5190-016

💡 TIP: If the pump leaks from the shaft area (where motor meets wet end), the shaft seal (5190-016) can often be replaced without buying a complete new pump.

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🎯 Ideal Applications

Application	Suitability	Notes
🛁 Whirlpool / jetted bathtub	✅ Yes — Primary Use	Designed specifically for this application
🛁 Replacing failed bath pump (5.5A)	✅ Yes	Match amperage for correct replacement
🛁 New whirlpool tub installation	✅ Yes	Compact design fits most installations
♨️ Hot tub jet pump	❌ No	Not designed for continuous hot tub use
♨️ Spa circulation pump	❌ No	This is a bath jet pump, not a circ pump
♨️ Pool pump	❌ No	Not suitable for pool applications

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❓ Frequently Asked Questions

Q: Is the 1010031 the same as the 1050031? A: Yes — identical pump. The 1050031 is the current Balboa part number with updated retail packaging (comes in a box). The 1010031 is the older part number. Same pump, same specs, fully interchangeable.

Q: What horsepower is this pump? A: This pump is rated at 0.5 HP by Balboa/Vico. Some retailers list it as 0.75 HP, which likely reflects a different HP measurement methodology. The amperage (5.5A) is consistent across all sources and is the most reliable specification for matching replacements.

Q: Does the air switch button come with the pump? A: The pump includes the built-in air switch mechanism inside the pump body. The deck-mounted air button and air hose that connect to this switch are sold separately. If your existing button and hose are working, you can reuse them with the new pump.

Q: What size plumbing connections does this pump have? A: Both suction and discharge are 1-1/2″ Male Buttress Thread (MBT), with an actual outside diameter of approximately 2-7/16″. These connect to industry-standard whirlpool bath union fittings (sold separately).

Q: Can I use this pump in a hot tub? A: No. This is a bath pump designed for intermittent use in jetted bathtubs. Hot tubs require spa-specific jet pumps rated for continuous or extended duty. Using a bath pump in a hot tub will result in premature failure.

Q: Does this pump drain itself? A: Yes. The self-draining volute is designed to empty water from the pump body after each use, preventing stagnant water from sitting in the pump between baths. There is no drain plug — this is by design.

Q: What if the pump doesn’t start when I plug it in? A: The pump has a built-in air switch. If the motor doesn’t run when plugged in, the switch is in the “off” position. Press the air button on the tub deck to toggle the pump on.

Q: What GFCI protection do I need? A: The outlet serving this pump must be GFCI-protected per the National Electrical Code (NEC). This pump plugs into a standard 115V grounded outlet — install a GFCI outlet or ensure the circuit is protected by a GFCI breaker.

Q: Does this pump include union fittings? A: No. Union fittings connect the pump to the whirlpool’s plumbing and are sold separately. Compatible unions include part numbers 400-4060, 400-4200, and 92065.

🔩 Part Numbers & Cross-References

Primary Part Numbers

Part Number	Description
1010031	Original Vico WOW 0.5HP Bath Pump (this pump)
1050031	Current Balboa part number (identical pump, updated packaging)

Replacement Seal

Part Number	Description
5190-016	Shaft seal for WOW bath pumps

Compatible Union Fittings (Sold Separately)

Part Number	Description
400-4060	1-1/2″ FBT pump union
400-4200	1-1/2″ FBT pump union
92065	1-1/2″ pump union

Full Cross-Reference — This Pump Replaces 20+ Part Numbers

1010031, 1010115, 1050031, PEN1010115, PUWWSCAS598R, PUWWSCAS798R, PUWWSCAS1098R, 305691, 310-2110, 321FF10-0150, 321FF10-1150, 32321FF10-0150, 32321FF10-1150, 5191-53, 5191-55, 5191-56, 5191-57, 5191-61, 612348, 621347, 903690403, VIC1050031

OEM System Compatibility

G&G Olympian 97111-423, Olympian 97211-423, American Standard F35A01A03 / 1010007, LX WCA50

🏆 Why Choose the Vico WOW 1010031

• ✅ Ultra-Quiet Operation — No intrusive noise during bathing
• ✅ 65 GPM Flow Rate — Strong jet performance from a compact pump
• ✅ Self-Draining Volute — Hygienic design prevents stagnant water
• ✅ Plug-In Ready — 3-foot NEMA cord, no hardwiring needed
• ✅ Built-In Air Switch — Simple on/off control from tub deck
• ✅ Compact Design — 13.5″ × 4.85″ × 7.2″ fits tight installations
• ✅ UL and CSA Listed — Meets North American safety standards
• ✅ Replaces 20+ Part Numbers — Universal replacement for most 5.5A whirlpool bath pumps
• ✅ 1-Year Manufacturer Warranty — Balboa Water Group coverage
• ✅ Proven Design — Vico-Ultrajet WOW series is one of the most widely used bath pumps in North America

🤝 Why Buy from Parts4Tubs

• ✅ Fast shipping across the United States
• ✅ Expert advice from spa and hot tub specialists
• ✅ Competitive pricing
• ✅ Full warranty support
• ✅ Hassle-free returns
• ✅ Replacement seals and union fittings available
• ✅ Dedicated customer service team

💧 Summary

The Balboa Vico WOW 1010031 (also sold as 1050031) is a 0.5 HP, 115V, 5.5A single-speed whirlpool bath pump delivering 65 GPM of quiet jet performance. Features include a self-draining volute, built-in air switch, NEMA power cord, and 1-1/2″ MBT connections. UL and CSA listed with a compact 13.5″ × 4.85″ × 7.2″ form factor. Replaces 20+ legacy part numbers including models from G&G Olympian, American Standard, and LX. Designed for jetted bathtubs — not for hot tub or spa use. Order from Parts4Tubs for fast shipping and expert support.

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	Magic Plastics Union 0602-15 (1.5″ Pump Union) | 1-1/2″S x 1-1/2″FBT Union, Pump, Magic, 1-1/2"S x 1-1/2"FBT (Industry Standard) w/ O-Ring	$6.36 Max: 587 Min: 1 Step: 1 Add to cart
	Magic Plastics Union 0602-20 (2″ Pump Union) | 2″S x 2″FBT w/ O-Ring Union, Pump, Magic, 2"S x 2"FBT (Industry Standard) w/ O-Ring	$8.00 Max: 567 Min: 1 Step: 1 Add to cart
	Waterway Union 400-6010 | 2-1/2″ Union Nut with 2-1/2″ Slip tailpiece and o-ring (2.5″ union) Union, Pump, Waterway, 2-1/2"FBT x 2-1/2"S	$14.77 Max: 148 Min: 1 Step: 1 Add to cart
	1 Speed Pump / Blower / AMP Cord | 21086 Amp Plug, Pump, 1-Speed, 14/3, 4-Pin, 5' Cord, White	$24.71 Max: 406 Min: 1 Step: 1 Add to cart
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Hot Tub Pump Collar & Union Size Chart

Imperial & Metric Specifications

Union Size	Collar Size	Thread OD	Union OD	O-Ring Size
1.5" Female Buttress Thread (FBT)	2.5" / 64mm (Tip to Tip) Measurement	2-1/2" 64mm	2-13/16" 71mm	2-5/16" OD 59mm
2" Female Buttress Thread (FBT)	3.1" / 78mm (Tip to Tip) Measurement	3-1/16" 78mm	3-3/8" 81mm	2-15/16" OD 75mm
2.5" Female Buttress Thread (FBT)	3.6" / 91mm (Tip to Tip) Measurement	3-5/8" 91mm	4-1/4" 108mm	3-7/16" OD 87mm

Important Notes

The union "size" (1.5", 2", 2.5") is nominal and doesn't correspond to any actual measurement.

Collar size is measured from thread tip to thread tip on the pump outlet.

Most hot tub pumps use Female Buttress Thread (FBT) - 98% of applications.

O-ring gaskets may vary between manufacturers - measure your existing gasket for accuracy.

How do I Replace a Hot Tub Pump?

Here's a general step-by-step guide on how to replace a hot tub pump. Keep in mind that the specific steps may vary depending on your hot tub's make and model, so it's essential to consult your hot tub's manual for model-specific instructions. If you're not comfortable with this procedure, it's a good idea to seek professional assistance.

Materials You'll Need:

• Replacement pump
• Pipe wrench
• Adjustable wrench
• Screwdriver
• Pipe sealant (thread tape or plumber's putty)
• PVC primer and cement (if you have PVC plumbing)
• Teflon tape (for threaded connections)

Procedure:

1. Turn Off the Power: Before you begin, ensure the hot tub's power supply is turned off at the circuit breaker or disconnect switch. Safety should always be a priority when working with electrical components.

2. Drain the Hot Tub: If your hot tub is not already empty, you'll need to drain it. Follow your hot tub's manual or manufacturer's instructions for proper draining. (You might not need to do this if you can lock the pump off with the gate valves)

3. Locate the Pump: Identify the location of the existing pump in your hot tub. It's usually located near the equipment area or in a designated pump compartment.

4. Disconnect the Electrical Wiring: Carefully disconnect the electrical wiring from the old pump. This typically involves removing the electrical conduit cover, unscrewing wire nuts, and disconnecting the wires from the terminals. Be sure to note the wire connections or take a picture for reference when connecting the new pump.

5. Disconnect the Plumbing: Depending on your hot tub's plumbing setup, you'll need to disconnect the plumbing connections to the pump. Use a pipe wrench or adjustable wrench to loosen and remove the fittings. Be prepared for some water spillage when disconnecting the plumbing.

6. Remove the Old Pump: Once the electrical and plumbing connections are detached, carefully remove the old pump from its mounting position. Some pumps may be secured with mounting brackets or bolts.

7. Prepare the New Pump: If the new pump is not pre-assembled, you may need to attach fittings, unions, or adapters to match your hot tub's plumbing. Ensure that you use the appropriate sealant or Teflon tape on threaded connections to prevent leaks.

8. Mount the New Pump: Position the new pump in the same location as the old one and secure it in place using the mounting brackets or bolts.

9. Reconnect Plumbing: Reconnect the plumbing to the new pump, ensuring that all connections are tight and secure. If your hot tub uses PVC plumbing, use PVC primer and cement to bond the connections properly.

10. Reconnect Electrical Wiring: Reconnect the electrical wiring to the new pump, following the notes or pictures you took earlier. Make sure all wires are properly connected and secure.

11. Turn On the Power: Restore power to the hot tub by switching on the circuit breaker or reconnecting the disconnect switch.

12. Test the Pump: Turn on the hot tub's pump to ensure that it's working correctly. Check for any signs of leaks or irregularities in the plumbing connections.

13. Refill the Hot Tub: Once you've confirmed that the new pump is functioning properly, refill the hot tub with water.

14. Check for Leaks: Inspect the plumbing connections for any leaks. If you find any, turn off the pump, drain the tub again, and reseal the connections as needed.

15. Monitor: Keep an eye on the pump and plumbing for the next few days to ensure everything is functioning correctly and that there are no further issues.

Remember that this is a general guideline, and the specific steps may vary based on your hot tub's design. If you're unsure or uncomfortable with any aspect of this process, please do get in touch, happy to help.

How do I know what size hot tub pump I have?

Determining the size of your hot tub pump is an important step when it comes to maintenance or replacement. To find out the size of your hot tub pump, follow these steps:

1. Check the Manual: The easiest way to determine the size of your hot tub pump is to consult the owner's manual or user documentation that came with your hot tub. The manual typically contains detailed information about the specifications and components of your hot tub, including the pump.

2. Look at the Pump Housing: If you don't have access to the manual or it doesn't provide the information you need, inspect the pump itself. Most hot tub pumps have a label or plate on the pump housing that displays essential details, including the pump's model number, manufacturer, and specifications. You can then send that to me or Google it.

3. Measure the Pump: If the label is missing or damaged, you can measure the pump's dimensions. Measure the diameter of the pump's wet end (the part where the water flows) and the length of the wet end. These measurements can help identify the size and capacity of the pump.

4. Consult the Manufacturer: If you can't find the information on the pump or in the manual, contact the hot tub manufacturer or a reputable dealer. Provide them with your hot tub's model and serial number, and they should be able to identify the correct pump size for your specific hot tub.

5. Online Research: You can also search online using the pump's model number or hot tub's make and model. Many manufacturers provide detailed information about their products on their websites, and you may find specifications for your pump model.

Once you have determined the size and specifications of your hot tub pump, you can proceed with maintenance, repairs, or replacement if necessary. Keep in mind that replacing a hot tub pump with the same size and capacity as the original is crucial to ensure proper water circulation and filtration in your hot tub. If you're unsure about any aspect of this process, get in touch, always happy to help.