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Circulation Pumps

Hot Tub Circ Pumps

Circulation pumps are found in select hot tub models.  Sure they are also in ponds, water features and other installations that need constant water circulation.   Some spas use a larger 2-speed pump on low speed to perform circulation duties while other spas has a dedicated 24 hour circ pump like the ones described in this section.

Circulation pumps are usually a single speed, low-flow hot tub pump that moves water through the hot tub filtration and heating system and across a filter cartridge for constant water movement, filtration and as needed, heating.

See our complete line of Circulation Pumps or the Popular Spa Circ Pumps below.

Popular 24 hour circulation pumps include LX brand circ pumps, Laing E5 and E10 pumps and others.  Plumbing connections on circ pumps can range from 3/4 inch slip or barb, 1 inch to 1 1/2 inch and sometimes even 2 inch plumbing.

Once of the best value all around circulation pump workhorses is the LX series available in either 115 volt or 230 volt configurations.

LX Circulation Pumps for Hot Tubs

LX 48WTC 1 1/2" mbt 115/230v universal voltage 1/15HP side discharge 48WTC0153C-I

WTC50M-Standard  1 1/2" mbt  230 volts 1/8 HP, side discharge WTC50M-STANDARD

WTC50M-USA (longer snout) 1 1/2" mbt  230 volts 1/8 HP, side discharge WTC50M-USA (Jacuzzi)
(WTC50M LX Jacuzzi/Sundance Spa wet end rotation 1 1/2" mbt, 230v, side discharge replaces  6500-907  48 frame motor)

WE14   1 1/2" mbt  115 volts, side discharge  WE14  4ft cord

WE14  1 1/2" mbt  230 volts, side discharge  WE14-230

Other popular brands include:

Circ-Master Aqua-Flo by Gecko

• Flow rate up to 50 gpm
• Wet ends available in either center or side discharge versions
• 24/7 circ pump application

Circ-Master  1 1/2" mbt   230 volts   1/15 HP   Side discharge   02093001-2010

CMCP Aqua-Flo by Gecko

• Flow rate 25-45 gpm
• 48 frame motor
• 24/7 circ pump application

CMCP  1 1/2" mbt  230 volts  1/15 HP ,Center discharge  02593001-2010

CMCP  1 1/2" mbt  115 volts  1/15 HP, Center discharge  02593000-2010

CMHP  1 1/2" mbt  115 volts  1/15 HP, Side discharge  02093000-2010

 

CMXP  2" mbt   230 volts 1/15 HP, Side discharge 06310002-2370  includes 8ft cord

 

Waterway Circulation Pumps

Waterway features the popular Iron Might circ pumps with the larger 48 frame motor that connect to 1 1/2 inch plumbing or the smaller Tiny Might circulation pumps that connect to 1 inch or 3/4 inch plumbing .

Iron Might  1 1/2" mbt 115 volts  1/16 HP, side discharge 3410030-1E includes a 4ft cord and 48 frame motor

Iron Might 1 1/2" mbt 230 volts  1/16 HP, side discharge 3410020-1E includes a 4ft cord and 48 frame motor

Tiny Might  1" mbt   115 volts  1/16 HP, side discharge 300-9000 includes a 3ft NEMA cord and compact high volume motor

Tiny Might 1" mbt  230 volts  1/16 HP, side discharge 300-9020 iwith large 6 1/2" diameter wet end

 

Balboa Circ Pumps

 Power Wow  1 1/2" mbt 230v  1/15 HP side discharge 6154106-S   (up to 67gpm)

Batpismal Circulation Pump, Ultima wet end 1 1/2" mbt 115v side discharge 6154113-S

Complete line of available circulation pumps for hot tubs.
Circ-Master Aqua-Flo by Gecko 1-1/2" MBT 230 1/15 Side 02093001-2010 No Cord
CMHP Aqua-Flo by Gecko 1-1/2" MBT 115 1/15 Side 02093000-2010 No cord
CMHP Aqua-Flo by Gecko 1-1/2" MBT 115 1/15 Center 02593000-2010 No Cord
CMCP Aqua-Flo by Gecko 1-1/2" MBT 230 1/15 Center 02593001-2010 No Cord
Balboa Wow/Power Wow Balboa 1-1/2" MBT 230 1/15 Side 6154106-S No Cord
Balboa Baptismal Circulation Pump Balboa 1-1/2" MBT 115 1/15 Side 6154113-S 3'
Laing E14 Laing 1-1/2" MBT 230 1/40 Side 73348 4'
LX 48WTC LX 1-1/2" MBT 115/230 1/15 Side 48WTC0153C-I No Cord
LX WTC50M LX 1-1/2" MBT 230 1/8 Side WTC50M-USA No Cord
WTC50M-STANDARD LX 1-1/2" MBT 230 1/8 Side WTC50M-STANDARD 4'
LX WE14 LX 1-1/2" MBT 230 1/4 Side 10-WE14-240 4'
LX WTC50M Sundance Jacuzzi 1-1/2" MBT 230 N/A Side 6500-907 No Cord
WCA50 LX 1-1/2" MBT 115V 0.5 Center PMP-WCA50-USA 6'
Iron Might Waterway 1-1/2" MBT 115 1/15 Side 3410030-1E
Iron Might Waterway 1-1/2" MBT 230 1/15 Side 3J10020-1E 4'
Tiny Might Waterway 1" MBT 230 1/16 Side 300-9020 4'
Grundfos 43 Grundfos 1" Barb 115 1/16 Side 31842 No Cord
Grundfos 43 Grundfos 1" Barb 230 N/A Side PU602394 4'
Laing E10 Laing 1" Barb 115 1/40 Side 74069 4'
Laing E10 Laing 1" Barb 230 1/40 Side 74079 4'
Tiny Might Waterway 1" MBT 115 1/16 Side 300-9000 4'
CMHP Aqua-Flo by Gecko 2" MBT 230 1/15 Side 6500-911 No cord
CMXP Aqua-Flo by Gecko 2" MBT 230 1/15 Side 06093000-2000 4'
CMXP Gecko Alliance 2" MBT 230 1/15 Side 06310002-2370 8'
CMXP Gecko Alliance 2" MBT 230 1/15 Side 06310000-2370 8'
Grundfos 43 Grundfos 3/4" Barb 115 N/A Center 10-0139-KIT 6'
Grundfos 43 Grundfos 3/4" Barb 230v N/A Side 10-0138-KIT 4'
Laing E10 Laing 3/4" Barb 115 N/A Side 6500-460 4'
Laing E10 Laing 3/4" Barb 115 1/40 Side 73989 4'
Laing E10 Laing 3/4" Barb 230 1/40 Side 73979 4'
Laing E10 Laing 3/4" Barb 230 1/8 Side SD6000-125 4'
E5 SlientFlo 5000 Laing 3/4" Barb 115/230 N/A Side 74427 4'
E5 SlientFlo 5000 Laing 3/4" Barb 115/230 N/A Side 74427-A 4'
Grundfos 43 Sundance Jacuzzi 3/4" Barb 115 N/A Side 6000-314 3'
Grundfos 43 Sundance Jacuzzi 3/4" Barb 230 N/A Side 6000-125RK 3'
Laing E10 Laing 3/4" MPT 115 1/40 Side 74009 4'
Laing E10 Laing 3/4" MPT 230 1/40 Side 73999

 

Circulation Pump Troubleshooting and Related Issues

Several other working components of a spa relate to the circulation system and circ pump including the filtration system, heating and plumbing.  Sometimes an error code such as DY, DRY, FLO or other may appear indicating a problem with the circulation that may point to either the circ pump, plumbing or control system as a likely culprit.  Not having enough flow through a spa heater causes errors which are warnings produced by the spa control system to avoid a heater running without water in it or adequate flow.  Troubleshooting by measuring voltage to the circulation pump, examining plumbing system, clean filter and other steps may help narrow down the issue between the pump, plumbing, valves, tubing or control system.  Related parts may include the heater, pressure or flow switch, or sensors.

A dirty filter can cause less than optimal flow rates and put a strain on the circulation pump over time, so it is a good practice to keep the filter clean of oils and debris, and change the filter annually or per manufacturer's recommendations.