2 Speed Pool Pump Recommendations

[Skyking75]

I currently have a Hayward 1 Hp pump on my inground pool. It is working fine but I thought I would do some research in the cost saving of a 2 speed pump. My question is do I look at a 1hp two speed pump or do I go a little higher? My plumbing is 1 1/2 inch for a 17,000 gallon pool. Also is there a different way to wire the pump. I have always changed out my pumps myself and find that is a simple thing to do. Also this may be a stupid question but can you just upgrade the motor?

Skyking

 

[tstex]

How far is your pump from the pool ? How many 90's [if any], do you have from your equipment pad to pool ? is the grade even?

 

[Skyking75]

Here is picture of my setup. The return line is 40 to 50 feet from the jets

 

[mas985]

Save yourself a lot of time and money and just replace the motor on your current pump with a two speed.

What is the model line of the pump (e.g. MaxFlo)?

 

[kj5kb]

Ditto on motor replacement, especially if you have a 115V system. You can't find a decent 2 speed pump in 115V anymore, but you can get motors. If 1HP has been enough, and enough for vacuuming, you could stick with that and get a 1HP 2 speed. Get one with a switch in the end if needed. I'd get a new impeller and install kit aka "go kit" as well. I have a 1.5HP on my 24000 gal pool and it's PLENTY of power.

 

[Skyking75]

It is a Hayward Max Flo 1 HP SP2800X series

 

[Skyking75]

I was looking for motors only. Here is what I have found so far. A.O. Smith SQS1102R 1HP Square Flange Two Speed Motor. I did notice there are 2 kinds of square flanges. A 48 and a 56. How do I find out which one I have?

 

[mas985]

The frame should be listed on the motor name plate. But I believe it is a 56J. What you want is the STS1072.

 

[Skyking75]

Yes I found 56J on the plate. I have another question. How do I determine which voltage pump to get? On the pump I have it says 115/230. I know it has a double breaker to turn it off at the house fuse box.
Not sure how it is wired up.

 

[mas985]

If the pump is currently wired to a dual breaker, then it is 230v. But you can confirm at the pump with a volt meter too.

 

[Skyking75]

Thanks for all of the info. I know now that I should buy a 2 speed motor. With a 56J mounting flange. I know that I am wired at 220. I like the model motor STS1072. I guess my last question would be how do you switch speeds? Use a toggle or a Timer. And where do you get those?

Thanks Again

 

[mas985]

Use a toggle or a Timer. And where do you get those?

Either. Sometimes you can ask the seller of the motor if they have one with a switch in the back of the motor. Sometimes they do.

Otherwise, you can get a two speed timer. Do you already have a timer for on/off?

 

[Skyking75]

Yes I have a manual timer. You set the time on a wheel and then put little clamps to turn it off and on. I don't have a programmable timer.

 

[mas985]

You can get a T106 timer for auto switching between high and low speeds although you probably only need low speed for most things:


How To Install a 2-Speed Motor and a T106 Timer - INYOPools.com

 

[Skyking75]

Thanks for the installation article on how to install a timer on a 2 speed motor. Now I just need to find a motor.

1 HP 220V 56J Flange 2 Speed.

Any Ideas?

 

[mas985]

The frame should be listed on the motor name plate. But I believe it is a 56J. What you want is the STS1072.

What was wrong with this?

 

[Skyking75]

I am having trouble finding it.

 

[mas985]

https://www.google.com/search?num=50&newwindow=1&rlz=1C1GCEG_enUS750US750&q=pump+motor+STS1072R&oq=pump+motor+STS1072R&gs_l=serp.3...56710.56710.0.56846.1.1.0.0.0.0.0.0..0.0....0...1.1.64.serp..1.0.0.J0AM4Uhv12E

Inyo has a pretty good price:
A.O. Smith 3/4 H.P Round Flange Dual Speed Full Rate Motor - STS1072R - INYOPools.com


Forgot to mention you will need a maxflo gokit too.

 

[Skyking75]

I am replacing a 1 HP motor. These look perfect but they are only 3/4 Horse.

 

[mas985]

Your pump is an up rated pump. A 3/4 HP full rated motor is the same size as a 1 HP up rated motor. To check multiply the label HP by the service factor (THP). The new motor THP should be at least as large as the old motor THP.