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Thread: Pool pump motor recommendation

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    Pool pump motor recommendation

    I want to downsize my oversized pool pump motor, I was leaning towards a Hayward MaxFlo VS, but after reviewing lot of threads in pumping station it seems replacing my motor would be a good option. I also noticed lot of experts in this forum using 1/2 or 3/4 or 1 HP motors who's' pool size is bigger than mine.

    1. My Current pump is Hayward Northstar with a 2 HP A.O.Smith motor, On and Off of pool pump is controlled with Intermatic pool spa control panel model # PF1112T

    [IMG][/IMG]

    2. I have raised spa and my family frequently run the pump in spa mode (it also has a dedicated air blower and we switch it on during spa mode).

    3. I have suction side cleaner and want to use it after downsizing (Kreepy Krauly)

    I guess a 1 HP two speed motor is more than sufficient for my small pool? Recommendations please.
    13K gal, IG, Gunite pool with raised spa water spill over to pool, built on 2005
    1.5 HP Hayward MaxFlo VS - June 2014
    DE Filter Model # DE6020
    Added Borates on Jun 2014

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    JasonLion's Avatar
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    Re: Pool pump motor recommendation

    With a spa you may not want to get a smaller pump than the one you have now. The pump size determines how active the spa jets are (unless you have a separate spa jet pump). Getting a two speed, or variable speed can still be a good idea. The suction side cleaner will also limit how much electricity you can save, since it needs at least a medium speed to operate correctly.
    19K gal, vinyl, 1/2 HP WhisperFlo pump, 200 sqft cartridge filter, AutoPilot Digital SWG, Dolphin Dynamic cleaning robot
    Creator of PoolMath and Pool Calculator. Other handy links: Support this site, TF Test Kits, Pool School

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    Re: Pool pump motor recommendation

    thanks Jason, I am planning to replace the motor for two reasons

    1. Relatively less upfront cost
    2. low installation charge, $75 for replacing the motor with new impeller kit and replacing diffuser if needed, where as every one asking close to $250 -$320 for new pump installation


    Will this motor work for me, it comes with a timer too

    1 HP Motor for $310

    Impeller assembly Kit for $28

    Do I need to change diffuser? According to Hayward, HERE irrespective of the motor capacity its same part number, so I am planning to use the current one.
    13K gal, IG, Gunite pool with raised spa water spill over to pool, built on 2005
    1.5 HP Hayward MaxFlo VS - June 2014
    DE Filter Model # DE6020
    Added Borates on Jun 2014

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    JasonLion's Avatar
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    Re: Pool pump motor recommendation

    From what I can see, that motor will work with your pump as long as you also replace the impeller. However, the spa jets will be significantly weaker.

    Your existing diffuser should be just fine.
    19K gal, vinyl, 1/2 HP WhisperFlo pump, 200 sqft cartridge filter, AutoPilot Digital SWG, Dolphin Dynamic cleaning robot
    Creator of PoolMath and Pool Calculator. Other handy links: Support this site, TF Test Kits, Pool School

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    mas985's Avatar
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    Re: Pool pump motor recommendation

    I agree with Jason. You don't want to downsize your pump with a spa. You would be much better off just going with a 2 speed motor such as this:

    http://www.poolsupplyworld.com/Centu...FZFufgodPywAzg

    You can use low speed for the pool and high speed for the spa.
    Mark
    Hydraulics 101; Pump Ed 101; Pump/Pool Spreadsheets; Pump Run Time Study; DIY Acid Dosing; DIY Cover Roller
    18'x36' 20k plaster, MaxFlo SP2303VSP, Aqualogic PS8 SWCG, 420 sq-ft Cartridge, Solar, 6 jet spa, 1 HP jet pump, 400k BTU NG Heater

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    Re: Pool pump motor recommendation

    You can go with a Ecotech 1.5 HP VS motor for $340 (or $10 less, Google hydropool coupon) and keep your current impeller. You can keep your current impeller because it has a service factor of 1.60. You can still maintain the performance of the spa jets by keeping your original impeller.
    http://www.hydropool.com/cgi-bin/hyd...EVSJ15-NS.html
    Pool Details: 25,440 Gal IG Vinyl 21x40 Mountain Pond (Graphex)
    Filter: Hayward Micro-Clear DE (48 Sq Ft)
    Pump: Hayward SP2603VSP VS Super Pump
    SWG: Circupool Si45
    Cleaner: Pentair Kreepy Krauly Prowler 820

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    Re: Pool pump motor recommendation

    ^^ Thank you all

    How is Ecotech reliability? in this forum, I have seen lot of complaints about Emerson but I don't know about this brand.

    Update
    After a quick google search I found Emerson/US motors are the same company, acamato, how is your experience with it?
    13K gal, IG, Gunite pool with raised spa water spill over to pool, built on 2005
    1.5 HP Hayward MaxFlo VS - June 2014
    DE Filter Model # DE6020
    Added Borates on Jun 2014

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    Re: Pool pump motor recommendation

    My Intermatic timer model # is PF1112T, after talking to one of the pool expert he explained to me that if I connect terminal 1 and 3 to motor and it will by pass the timer control, is that correct? Because Ecotech 1.5 HP VS motor has in built timer and on and off control. Anyone?
    13K gal, IG, Gunite pool with raised spa water spill over to pool, built on 2005
    1.5 HP Hayward MaxFlo VS - June 2014
    DE Filter Model # DE6020
    Added Borates on Jun 2014

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    Re: Pool pump motor recommendation

    Quote Originally Posted by missourian View Post
    My Intermatic timer model # is PF1112T, after talking to one of the pool expert he explained to me that if I connect terminal 1 and 3 to motor and it will by pass the timer control, is that correct? Because Ecotech 1.5 HP VS motor has in built timer and on and off control. Anyone?
    Terminals 1 & 3 are for the power supply to the timer. Essentially you are bypassing the timer.
    http://www.intermatic.com/~/media/In...s/PF1112T.ashx

    I would make the wiring in the panel neater and wire the pump directly to the circuit breaker.
    Pool Details: 25,440 Gal IG Vinyl 21x40 Mountain Pond (Graphex)
    Filter: Hayward Micro-Clear DE (48 Sq Ft)
    Pump: Hayward SP2603VSP VS Super Pump
    SWG: Circupool Si45
    Cleaner: Pentair Kreepy Krauly Prowler 820

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    Re: Pool pump motor recommendation

    Thank you acamato
    13K gal, IG, Gunite pool with raised spa water spill over to pool, built on 2005
    1.5 HP Hayward MaxFlo VS - June 2014
    DE Filter Model # DE6020
    Added Borates on Jun 2014

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    Re: Pool pump motor recommendation

    Ordered - EchoTech EVSJ15-NS from Hydro pool for $329, thanks acamoto for a tip on $10 additional savings. I have two questions

    1. Wiring on my Intermatic timer

    [IMG][/IMG]

    The line out with black arrow goes to pump, as of right now two equipments (heater and pump) on/off are controlled by timer(L2 and L4). The air blower is directly connected to L1 & L3

    1. Keep the same wiring configuration and remove the on and off screws of timer and keep the manual knob in on position?
    2. Follow similar configuration like my air blower, feed the pump directly from L1 & L3
    3. is there any other option?

    I have hired a pool guy to install the motor on coming Friday but I am not sure if I need to hire an electrician, any suggestions?
    13K gal, IG, Gunite pool with raised spa water spill over to pool, built on 2005
    1.5 HP Hayward MaxFlo VS - June 2014
    DE Filter Model # DE6020
    Added Borates on Jun 2014

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    Re: Pool pump motor recommendation

    I got my EcoTech EZ today, it is not compatible with Hayward Northstar pump , there is no way to lock the motor with pump using the lock ring and handle. Wasted 2 hours and learnt the lesson. Hope this warning may help someone.
    13K gal, IG, Gunite pool with raised spa water spill over to pool, built on 2005
    1.5 HP Hayward MaxFlo VS - June 2014
    DE Filter Model # DE6020
    Added Borates on Jun 2014

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    Pool pump motor recommendation

    Hmmmm sounds fishy. Pictures?

    Edit. Not looking as fishy. I would give the folks at century motors ( used to be AO smith) a call in the morning. They were a huge help when I did my 2 speed upgrade. It looks like they may have a motor line specifically for Hayward north star.
    Last edited by karmabiker; 06-13-2014 at 12:27 PM. Reason: pre coffee spelling corrections
    TFP Moderator Chris V. ~16K Pool & Spa, 48NSF DE, IG Plaster Circa 2000, Intermatic PE653, Challenger pump with a 2 speed B2984, 20gal stenner chlorine injection, Houston, TX
    One cannot follow Islam and Christianity at the same time, nor can one follow pool store methods and TFP at the same time.
    Pool School -- Pool Math -- TF-Test Kit

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    Re: Pool pump motor recommendation

    I have a 0.5HP NorthStar on my 22K gallon IG pool. 2HP definitely seems oversized if its really a NorthStar pump that you have. The amount of water even the 1/2HP NorthStar pumps is pretty impressive (Ive had a few pool companies out working on my pool and all of them have commented they cant believe that little pump puts out so much flow)

    If its going to be too much of a pain to downsize to a 2 speed, I would think about getting the 3/4HP NorthStar motor and the proper impeller/diffuser for the 3/4HP version.

    I have seen a PDF file linked somewhere in this forum that had all sorts of replacement pumps and I know NorthStar was listed in there (albeit with less options)

    EDIT: sorry, noticed you have a spa as well. 2HP might be good then, as mentioned earlier in this thread. The 2 speed options for NorthStar replacement are limited but there were a few (I still cant find that PDF I just read last week)
    22K IG vinyl, .5HP Northstar pump, S244T filter, AutoPilot Digital w/SC-48 cell

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    Re: Pool pump motor recommendation

    Quote Originally Posted by missourian View Post
    I got my EcoTech EZ today, it is not compatible with Hayward Northstar pump , there is no way to lock the motor with pump using the lock ring and handle. Wasted 2 hours and learnt the lesson. Hope this warning may help someone.
    Can you place the lock ring on the motor first then bolt up the motor plate?


    Pool Details: 25,440 Gal IG Vinyl 21x40 Mountain Pond (Graphex)
    Filter: Hayward Micro-Clear DE (48 Sq Ft)
    Pump: Hayward SP2603VSP VS Super Pump
    SWG: Circupool Si45
    Cleaner: Pentair Kreepy Krauly Prowler 820

  16. Back To Top    #16
    mas985's Avatar
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    Re: Pool pump motor recommendation

    The Northstar pump housing can be difficult to close sometimes. The back of the mounting plate must be perfectly flush in the housing before even attempting to use the locking ring. This can be an issue because the o-ring makes it difficult to seat the backing plate. Some pool lube really helps to get the o-ring in the slot and the back plate seated. A little rotation of the motor back and forth can help too.
    Mark
    Hydraulics 101; Pump Ed 101; Pump/Pool Spreadsheets; Pump Run Time Study; DIY Acid Dosing; DIY Cover Roller
    18'x36' 20k plaster, MaxFlo SP2303VSP, Aqualogic PS8 SWCG, 420 sq-ft Cartridge, Solar, 6 jet spa, 1 HP jet pump, 400k BTU NG Heater

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    Re: Pool pump motor recommendation

    Can you place the lock ring on the motor first then bolt up the motor plate?
    Yes I tried that option, motor drive control on the top of the motor is what causing me an issue .
    13K gal, IG, Gunite pool with raised spa water spill over to pool, built on 2005
    1.5 HP Hayward MaxFlo VS - June 2014
    DE Filter Model # DE6020
    Added Borates on Jun 2014

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    Re: Pool pump motor recommendation

    Quote Originally Posted by mas985 View Post
    The Northstar pump housing can be difficult to close sometimes. The back of the mounting plate must be perfectly flush in the housing before even attempting to use the locking ring. This can be an issue because the o-ring makes it difficult to seat the backing plate. Some pool lube really helps to get the o-ring in the slot and the back plate seated. A little rotation of the motor back and forth can help too.
    Yes, I suspect I am doing something wrong, My local Leslies asked me to bring the motor and pump to them, I am going to give it a try, worst case, I may need to replace the pump, is there any energy efficient version of Hayward Northstar? I want to avoid changing the plumbing.
    13K gal, IG, Gunite pool with raised spa water spill over to pool, built on 2005
    1.5 HP Hayward MaxFlo VS - June 2014
    DE Filter Model # DE6020
    Added Borates on Jun 2014

  19. Back To Top    #19
    mas985's Avatar
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    Re: Pool pump motor recommendation

    Why not just replace the motor with a standard two speed? Or is the motor not returnable?

    What makes a pump efficient is not the pump but the motor. Specifically, any two/variable speed pump/motor is going to be energy efficient.
    Mark
    Hydraulics 101; Pump Ed 101; Pump/Pool Spreadsheets; Pump Run Time Study; DIY Acid Dosing; DIY Cover Roller
    18'x36' 20k plaster, MaxFlo SP2303VSP, Aqualogic PS8 SWCG, 420 sq-ft Cartridge, Solar, 6 jet spa, 1 HP jet pump, 400k BTU NG Heater

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    Re: Pool pump motor recommendation

    Quote Originally Posted by mas985 View Post
    Why not just replace the motor with a standard two speed? Or is the motor not returnable?

    What makes a pump efficient is not the pump but the motor. Specifically, any two/variable speed pump/motor is going to be energy efficient.
    That was my first option but unfortunately my current Intermatic (PF1112T ) timer doesn't support 2 speed option, so checked with my local electrician he is asking $99 for installation plus equipment cost for me. My calculation on this comes close to $550 (2 speed motor + new timer with 2 clock + timer installation). I didn't include the pump installation cost on this with the hope that I can do it by myself.

    Yes the store(Hydro pool) I bought Ecotech EZ has a 30 day return policy, but I need to pay return shipping plus there is a possibility of 15% restocking fee. It looks like for a Hayward North star pump I need to buy a special motor like below but again my current timer is not compatible for 2 speed

    Protruding Capacitor with space on top

    Thanks again for your excel sheet, very useful tool,my main motivator to get an energy efficient pump/motor.
    13K gal, IG, Gunite pool with raised spa water spill over to pool, built on 2005
    1.5 HP Hayward MaxFlo VS - June 2014
    DE Filter Model # DE6020
    Added Borates on Jun 2014

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