Laing/Goulds - Circulation Pump E5, SilentFlo 5000, 74427 Replacement, 110V-240V, 3/4" Barbs, 50/60HZ - 10-0102-K, HQ100102

CLaing/Goulds/Xylem - Circulation Pump E5, SilentFlo 5000, 74427 Replacement, 110V-240V, 3/4" Barbs, 50/60HZ - E5, 10-0102-K, HQ100102

• This Item has FREE SHIPPING
• Dimensions: 5-1/2" L X 5" H 
• 4ft Cord
• E5 - SilentFlo 5000 Replacement
• Same as Watkins 74427
• Moves 6000 Gallons every 24 hours
  
• The new version of the pump does not require the ground lug on the back of the unit. The new version of the pump does not require the ground lug, and will not need to be included in your Ground loop. 

Replacement Option For:  

• All Caldera Spas Circulation Pumps from 2002 - Current 
  
• Hot Springs Models from 1986-Current
  
• Tiger River Models from 1986-Current MFG #74416
  
• Replaces the SilentFlo 5000

**Please Note: The Manufacturer of this pump no longer includes the ground lug (Earth Bond) found on earlier models. This will not affect function or safety.**
**Please Note: Some of the older SilentFlo 5000 pumps had 1" Barbs. In those cases, you will need the additional parts shown below for reducing the plumbing/tubing to 3/4"**
Additional parts needed for reducing from 1" to 3/4":Reducers: Dura - Barb Coupling 1in. Barb x 3/4in. Barb - 1429-131Tubing: Air/Water Tubing, Vinyl, 3/4"id x 1"od, 50ft Roll - 110-0140-250, 110-0140-250B
Another option is to get just a little bit of 3/4" tubing from the hardware store. You just need enough to put over each barb. Then, you can slide your old 1" tubing over the barbs of the new pump, as the addition of the little piece of 3/4" tubing will make them as thick as the 1" barbs of the older pump. 

If you are replacing the old 1" version of the SilentFlo Pump, you may want to consider one of these other 1" barbed circ pump replacement options:

1. Grundfos - 43 Series Circulation Pump, 115V (12-18 GPM), 1in. Barbs - 31842, 59896291
2.  Gatsby & Blue Ridge Spas - Laing Ecocirc E10, 1", 115V Barb Circulation Spa Pump - 321024

Also replaces: 10-0102-K, 10-0102 , 611452 , 733886902600 , 733886940602 , 74427 , 9026 , 9406 , E5-NSHNNN3W , LAISM303NH3/4 , LAISM303NHT , SM303NH-75 , SM303NHT, 301630, 34378, 73369, 301392, 301392E (Watkins), 74415 (Watkins), Used under the name SilentFlo, E5-NCHNNNN3W-10, 79003, 

This New SilentFlo E5 circ pump replaces all previous versions of single speed circulation pumps. 

The new E5 replaces the SilentFlo® 5000 and all previous style single speed circulation pumps on all Hot Spring and Tiger River spa models from 1986 to 2009. 

The E5 was introduced in March of 2008 as the premier upgrade/replacement circulation pump.  The compact size and flexible positioning (can mount vertically on the sidewall of the equipment compartment) has won it favor with Hot Spring dealers worldwide. This little jewel uses less electricity and moves more water per minute than its predecessor, the Silentflo 5000. When you refill your spa and power it up this ”next generation” magnetic drive slowly ramps up to insure that it's well primed with water. 

The position of the suction/inlet is 1-11/16” from the floor which is the same as the Silentflo 5000. 

The return/discharge is 4-1/4” off the floor same as the Silentflo 5000. This flexible pump can also mount on its side without the need to secure it to the floor of the equipment compartment with the attached bracket. The impeller is accessible simply by unscrewing the top ring of the pump. The circulation pump draws water through the circulation pump filter (1989 forward spas) and then pushes it through the heater, ozone injector (if equipped) and back into the spa through the heater return fitting or floor drain. It circulates twenty percent more gallons per minute than the Silentflo 5000 yet uses nearly half the wattage. Impressive!Note: These circulation pumps are water lubricated and cooled and require the presence of water at all times. These pumps should NOT be operated without water present in the spa. If a ”dry run” occurs , the pump has an internal safety device (thermal cut-off) that will automatically shut it down should it overheat. To reset this pump simply power down the spa for 10 seconds then power it back up. 

Technical Specs: 

• 115 / 230 volts
• 35 watts 
• 6,000 Gallons every 24 hours  
  

INSTALLATION INSTRUCTIONS: Removal of old pump Disconnect power to the spa. Access the equipment compartment. Unplug the circulation pump from the control box. If the spa is filled with water, clamp the circulation pump inlet and outlet tubing with Hose Clamp Pliers or insert wine bottle corks into the ends of the tubing. Remove the bonding wire and base bracket screws. Use pliers to slide the spring clamps located on the inlet and outlet fittings back onto the vinyl tubing. Remove the vinyl tubing from the pump inlet and outlet fittings. Disconnect the electrical cord for the old pump. Take note of the electrical hookup.   

Installation of the new pump Install the original electrical cord onto the new pump. Reverse steps 3 to 7 of the Circulation Pump Removal instructions. Check for water leaks. Reconnect power to the spa. Perform a water flow test. Check for any air in the plumbing lines. If air does not clear, bleed off the air at the closest tubing clamp. Reinstall the equipment compartment door. 

The new version of the pump does not require the ground lug on the back of the unit. The new version of the pump does not require the ground lug, and will not need to be included in your Ground loop. 

Replaces: 

PN: 34378, 73491, A-05-280-502, LTI P/N: 7060,70813, 73588, 73989, 73588, 37949, 10-0102 , 611452 , 733886902600 , 733886940602 , 74427 , 900300632 , 9026 , 9406 , E5-NSHNNN3W , LAISM303NH3/4 , LAISM303NHT , SM303NH-75 , SM303NHT, 65-02989, 1655301-1, 1655301-1C, 6080U5019, E5-NSHNNN3W14

E5 Circulation pump for Caldera, Hot Springs and Tiger River Hot Tubs115 Volts / 39 Watts

6,000 Gallons every 24 hours, Includes Cord 

The new E5 Circulation Pump replaces the SilentFlo 5000 (Part # 72204) and all previous style single speed circulation pumps on all Caldera, Hot Spring and Tiger River spa models. 

E5 Pump Features:

The E5 Circulation Pump uses less electricity and moves more water per minute than its predecessor the SilentFlo 5000. When turning this pump on the magnetic drive slowly ramps up to insure that it's well primed with water.  

The E5 circulates twenty percent more gallons per minute than the Silentflo 5000 yet runs using only 39 Watts.The E5 circulation is water lubricated. This pump should NOT be operated without water in the spa. If the pump is run dry, the pump has an internal safety device (thermal cut-off) that will automatically shut it off should it overheat. To reset this pump just turn off the spa for 10 seconds then turn it back on.

Also Known As: Watkins 74427, Watkins 74416, Hot Springs 74427, Watkins 74416, Caldera 74427, Caldera 74416, Tiger River 74427, Bullfrog 65-02989, E5-NSHNNN3W14

Accessory Pump Type	Circulation
Manufacturer	Laing Thermotech
Pump Model	E5
Speed	1 Speed (1-Spd)
Motor Voltage	115v/230v
Drain Plug Location	None
Suction Style	Center
Suction Connection Type	Smooth Barb (sb)
Suction Pipe Size	3/4"
Discharge Style	Side
Discharge Connection Type	Smooth Barb (sb)
Discharge Pipe Size	3/4"
Motor Amperage/Wattage	50w