Hello all, I have a Hayward 1 1/2 HP water feature pump Model # SP3210X15 that moves too much water. It serves my rock water falls and 2 bubblers on the sun deck. The water flow is too much and too noisy. It’s hard to have a conversation when it’s running. Can I install a smaller impeller on this pump to slow down the flow? If so, does anyone have the info on part numbers? Also, the motor has an open winding so does anyone have info on installing a smaller motor to match the smaller impeller to save costs? A new pump is too expensive and I’d rather just replace the motor and impeller.
Installing Smaller Impeller In Pump
- Thread starter johnw
- Start date
You can switch to a SPX3207C or a SPX3205C impeller.
You don't need to replace the motor.
You don't need to replace the motor.
John,
Would it not be better just add a Jandy valve to the output of the pump, so that you can adjust the flow to exactly what you want???
Thanks,
Jim R.
Would it not be better just add a Jandy valve to the output of the pump, so that you can adjust the flow to exactly what you want???
Thanks,
Jim R.
I would go with a SPX3205C impeller over using a valve.
You can add a valve if the SPX3205C impeller is still too much flow.
The valve will slow the flow but it will still be noisy and use a lot of power.
The smaller impeller will be quieter and use less power.
You can add a valve if the SPX3205C impeller is still too much flow.
The valve will slow the flow but it will still be noisy and use a lot of power.
The smaller impeller will be quieter and use less power.
Thanks James. The motor shorted out and blew the breaker. I ohmed Out the motor and it has an open winding so the motor needs to be replaced. I figured while I was in there replacing the motor, I would put in a smaller impeller since the impeller has to be removed from the shaft while replacing the motor.
I already have a bad motor and the impeller needs to be pulled to replace the motor. Also, a Jandy valve would be quite noisy when it’s throttled down and I want to save energy.
You can go with a SPX3207C (1.25 total HP) or a SPX3210C (1.65 total HP) and a variable speed or single speed motor.
Just curious, how come the parts list shows the original SPX3210C impeller to be 1 HP when it’s a 1.5 HP pump?
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Uprated pump. It was a numbers game that is no longer used. What is the service factor of your motor? Likely 1.1, giving a total horsepower rating of 1.65.
A full-rated 1hp TriStar would have a 1hp motor with a 1.65 service factor on the label equaling 1.65 total horsepower.
The impeller will load the motor to its total horsepower.