Why is my pump doing this on start up?

[djdonte]

It just started. It kind of skips a few times. You can hear it and see the shock in the piping. It only does it when primed not after emptying the strainer. Capacitor or is my motor on the way out? The capacitor looks shiny and new but it was here when I bought the house.

https://imgur.com/a/adVZ4sT

 

[PoolStored]

I'm getting no sound with the video...anyone else?

 

[mknauss]

I do not click on those links. Videos should be uploaded to YouTube and a link put in the post.

 

[djdonte]

Sorry guys didn’t know Imgur didn’t work on here. Never uploaded a video. Here you go.

 

[mknauss]

I see some air pulled in. A seal problem?

 

[willygee]

Single or 2 speed pump?

 

[djdonte]

Single speed 2 hp And no I don’t think it’s a seal problem.

 

[willygee]

Pressure reading change when it jumps?

 

[djdonte]

Not sure but I will check.

 

[djdonte]

Pressure reading change when it jumps?

Yes the pressure gauge jumps along with the rest of the piping when the motor does that. I might try a capacitor.

 

[willygee]

Permanent Split Capacitor​

Is this your motor? Run cap only/no start cap?​

This design, commonly used on Century motors, is often referred to as a switchless motor, because it doesn’t have the typical centrifugal switch threaded onto the rear of the motor shaft. The PSC motor uses a top mounted run capacitor for run operations, but is permanently wired to the power source. The design has less starting torque and uses more energy than a capacitor start design.

What are your 2 PSI at the gauge readings?

 

[djdonte]

That looks like it. It runs about 18psi (I think) but when its shuttering like that you really cant get a reading the needle is going back and forth.

 

[willygee]

If you have one of these you can test for amperage and uF capacitance as well. Motor label will have amps. Cap will have uF values on it.

 

[ferretbone]

Change the lid oring, the lid clamp, and the lid glass. Or just leave it alone, that's an air problem on start up not a cap. Which isn't a real problem. Just leave it be or replace those. Your good man.

 

[djdonte]

Change the lid oring, the lid clamp, and the lid glass. Or just leave it alone, that's an air problem on start up not a cap. Which isn't a real problem. Just leave it be or replace those. Your good man.

Hmm interesting. I just replaced the lid o ring but no change. My manual air bleeder on the filter is leaking slightly perhaps that is causing it? I figured the air would need to be before the pump to cause problems. I have a new bleeder arriving today or tomorrow.

 

[djdonte]

You're right, the cap did nothing and neither did fixing my leaky filter bleed. I did replace the o ring on the pump lid, but youre saying I need to replace the lid and clamp as well to fix this? Here is a better video:

 

[willygee]

Is it me or does that sound like a 2 speed pump. Amp clamp will tell all.

 

[djdonte]

Its a 2hp single speed.

 

[Darin]

What ferretbone said, leave it alone. the motor does not care about he air in the strainer.