2 speed pump question

[kwing01]

Hi all,

I replaced 2 speed Pentair whisperflo pump last year. The problem is when i use the low speed, pump volute (basket) will have more air bubbles inside than the high speed. When i use the low speed for more hours and when i switch back to high speed, i see my return line have air bubbles out to the pool. Is this normal? I don't see any leak on the pump.

 

[bobodaclown]

Yes. It happens with mine. it's no big deal.

 

[kwing01]

so is there any problem if i keep running the low speed for few days without run the high speed to blow the air bubbles out?

 

[bobodaclown]

No problem.

 

[bk406]

My 2 speed on low does that too. not a big deal