Bubbles in variable speed pump at lower speeds

[bkruz]

Never seen this much air in any pool I've owned, but also never had a VSP. Pool builder says it's normal. I can remove air from system by running at high speed. Any thoughts on whether there's an issue or not would be appreciated.

Small new pool (5000 gallons), skimmer, main drain, vac line, 3 returns.
Equipment elevated 3 ft.
2.7 HP variable speed hayward tristar
25K Hayward omni salt cell
120BTU heater chiller

 

[Texas Splash]

Pool builder says it's normal.

That is often teh case with VSPs. Double check to make sure the pump lid O-ring is well lubed, but otherwise it is quite common. A daily purge is typically scheduled to purge the air.

 

[ajw22]

Air in the pump basket at low speeds is normal, especially with TriStar pumps.

 

[bkruz]

That is often teh case with VSPs. Double check to make sure the pump lid O-ring is well lubed, but otherwise it is quite common. A daily purge is typically sc

That is often teh case with VSPs. Double check to make sure the pump lid O-ring is well lubed, but otherwise it is quite common. A daily purge is typically scheduled to purge the air.

I've been lubing both o-rings well at filter cleaning. Is the daily purge something I should schedule or will it happen automatically?

 

[ajw22]

What is the daily speed schedule for your pump?

 

[bkruz]

What is the daily speed schedule for your pump?

Currently running 8 hrs at 60%. Don't have much knowledge or direction from my pool builder on the VSP

 

[ajw22]

You say you can remove air from the system by running at high speed. For how long?

Do you have the air bubble when the pump starts the 8 hour run?

Is the air affecting anything in your pool operation? If not, I would not worry about it.

Or you can program the pump to run at high speed sometime during the 8 hours to clear the air.

 

[bkruz]

You say you can remove air from the system by running at high speed. For how long?

Do you have the air bubble when the pump starts the 8 hour run?

Is the air affecting anything in your pool operation? If not, I would not worry about it.

Or you can program the pump to run at high speed sometime during the 8 hours to clear the air.

I’m able to clear the air in five minutes or less running at my programmed high speed, which is actually 80%. When the pump starts and goes through priming, it purge is all air. The air is not affecting anything in the pool operation. I don’t even see bubbles in the pool unless I cover one of the returns and let go. Even that can only be produced once or twice.

My pool builder actually did a pressure test on all of the equipment by closing all of the valves to the pool and pressurizing to 35 psi. No leaks.

 

[ajw22]

Sounds to me like you are good the way it is.

 

[bkruz]

Sounds to me like you are good the way it is.

One thing I forgot to mention: if I run on high & close either the skimmer or main I get bubbles & if at 100% cavitation. I assume this is due to too much suction on one line.

 

[ajw22]

One thing I forgot to mention: if I run on high & close either the skimmer or main I get bubbles & if at 100% cavitation. I assume this is due to too much suction on one line.

So don’t do that.

Your pump needs more water at high speed and needs feeds from all the lines.

 

[1poolman1]

I've been lubing both o-rings well at filter cleaning. Is the daily purge something I should schedule or will it happen automatically?

No need to let air out of the filter, it has an air-relief tube internally that does that as the system runs if needed.