Will do so, just thinking about anything that has changed since last time I had the single speed whisperflo looking for possible impact. Thank you
Keep blowing pump motors pool guy says call electrician
- Thread starter Janhillatx
- Start date
Plot thickens impellers are aftermarket without stamp!! I had the multivalve change mixed up in my mind. Told pool guy I want non aftermarket impeller that I will inspect before it is installed. The pump he removed teardown had aftermarket impeller without stamp and no damage to plate motor working fine.
Looking up invoices on exact changes to multiport.
Looking up invoices on exact changes to multiport.
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There is almost always a part number if you look carefully.
Did you inspect the impeller carefully front, back and inside?
I thought maybe we added back pressure going from 2” to 1.5” multiport. Turns out multiport went up from 1.5 to 2” matching the 2 inch pool pad pipes, so in my mind everything should flow easier. I tested amps on recirc and discharge and it didn’t budge so I’m ruling out the multiport as a culprit. It’s something in the pump and given how on target you are impeller. I will let him try factory first then drop down one impeller size.
Increasing the pipe size increases amperage because the flow increases.
In any case, the difference is negligible.
Did you get pictures of the impeller?
I didn’t take pictures cause no markings will get before & after when we try factory part
I went away from almost anything aftermarket as I've seen promises of OEM and it it can't be proven even if it had markings. You pay somewhat more but do the work only once so in reality it's cheaper.
I will say I'll run with aftermarket if it comes from this forums guidance.
I will say I'll run with aftermarket if it comes from this forums guidance.
As you can see, the impellers have a larger width as the size increases.
The width increases by about 1/16" each time.
This moves more water, which increases the amperage.
Measure the dimensions of the current impeller.
The width increases by about 1/16" each time.
This moves more water, which increases the amperage.
Measure the dimensions of the current impeller.
Pool guy came out and swapped to OEM without alerting me. So I did not get all intended pictures. The width of the old impeller was over 1/2 inch (in picture below). There was a stamp of 1.5 on the after market part but it measured closer to 9/16 width. The other measurements appeared correct. I do notice a more normal flow thru my return jets. He kept a mark showing width of new impeller at 1/2 inch wide. So hopefully it is correct. I’m still high at amps 8.6 but it’s come down with each new impeller. I think it’s probable my original whisperflow equipment has been oversized to my pump and maybe I made that worse with the increase in the multivalve. I sure appreciate your knowledge.
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Can you show ALL writing on the impeller including looking into the impeller?
You have to look very carefully for writing.
You have to look very carefully for writing.
Most likely, the impeller is a 073129, which is a 1.5 HP Full Rated Impeller, which is a 2.25 Total HP impeller.
The problem is the way pump HP is reported, which has caused millions of motor replacements to be done incorrectly.
I made a thread about the issue.
Getting rid of "Service Factor" for motors.
Does service factor have any value? In my opinion, it has no value. In fact, I think that it only causes problems and confusion. The only number that really matters is the Total HP of the motor. Motor makers make two identical motors and label one as 1 hp with a 1.65 service factor and the...
www.troublefreepool.com
I would change to a 073127 impeller.
Again, that makes zero difference.
James he already installed it by the time I realized he was working on it so I got zero pictures of the new impeller. Thanks I will know what to look for in the future
As you can see from the impeller chart, the 073129 impeller is listed for a 1.5 HP pump, but this is misleading because 1.5 is the "Rated" HP and not the Total HP.
The total HP is 2.20.
Many pool people do not know this and, most likely, your pool person does not know this.
You probably need to inform them so that they do not keep making the same mistake.
Impeller......Total HP......Amps at 230 volts.
073126.........0.95................4.13
073127.........1.25................5.43
073128.........1.65................7.2
073129.........2.20................9.56
073130.........2.60................11.3
073131.........3.45................15.0
Your amperage is still too high and it will cause the motor to burn out faster than normal.
I would go with a 073127 impeller.
I did check the other measurements and they all appeared right I think it was a 129 impeller
I'd just order the impeller @JamesW recommended and change it yourself. It's really pretty straightforward of a task.