Need New Pool Pump Motor. Sizing?

[gitar]

Hi all. I have a 18,000G inground vinyl liner pool that I need to replace the motor on. The current motor is a Hayward Super Pump 1hp. It’s on its last legs as it continually trips the breaker and is over 8 years old. The sand filter model is a Hayward S160T with a GPM flow rate of 35 and max working pressure of 50PSI.
Three years ago we had our liner replaced and they cemented and covered the main drain. We now have 1 skimmer and 3 return jets in the pool.
I need to know the size motor I should purchase. It would seem like I could drop down to a Century 3/4 HP motor? I don’t know what else you need to calculate the motor size. I am aware if I change the motor size that I’ll need a new go kit and impeller. Can someone help me get this sized correctly. Thanks

 

[mknauss]

What is the THP of the motor? Post a picture of the motor label. Also any labels on the wet end (pump).

Best option will be a VS motor.

 

[mknauss]

Check what voltage your current motor is running on.

 

[gitar]

What is the THP of the motor? Post a picture of the motor label. Also any labels on the wet end (pump).

Best option will be a VS motor.

Here is the label. Currently running on 115v. I am not looking to spend up to get a VS motor. We will be selling in a few years and need to buy some time. The replacement I’m looking at is linked below. Thoughts??

Century (A.O. Smith) 0.75 HP Up Rate Motor, Round Flange 56J Frame, Single Speed - Model UST1072 - INYOPools.com

Century 3/4 HP Round Flange 56J Up Rate Motor - UST1072

www.inyopools.com

 

[mknauss]

That will work with a smaller impeller.

 

[gitar]

That will work with a smaller impeller.

Will it be adequate for my pool size and sand filter. I’m running 1.5” pipe and I see this stuff online about feet of head etc. I just want to make sure I’ll turn the pool over in 8-10 hrs.