Return Jet creating Tornado and sucking noise at surface

ThaChad

Well-known member
Sep 28, 2016
71
Central, Illinois
Hey all,

My return jet causes a Tornado at the top of the water above the return jet. This creates a sucking noise that is unpleasant, it also causes top floating items that would normally go to the overflow box, to get sucked down and blown back out by the return jet.

Any advice on how to fix this issue? It would seeming be as if the return jet was too close to the surface, but it was predrilled in the pool wall. My water level is 1/2 way threw the skimmer box.

Thanks,

-ThaChad
 

YippeeSkippy

Mod Squad
LifeTime Supporter
Jan 17, 2012
9,411
Evans, Georgia
Re: Return Jet creating Venturi Tornado

Can you show us a picture of this return jet?

I'm unsure of what you mean when you say your water level is 1/2 way thru the overflow....Do you mean skimmer? Because my first suggestion is to raise your water level up so that this noisy return is under the water. Is that possible?

Yippee :flower:
 

ThaChad

Well-known member
Sep 28, 2016
71
Central, Illinois
Can you show us a picture of this return jet?

I'm unsure of what you mean when you say your water level is 1/2 way thru the overflow....Do you mean skimmer? Because my first suggestion is to raise your water level up so that this noisy return is under the water. Is that possible?

Yippee :flower:

Hello,

Thanks for the reply!

Yes I meant Skimmer. Sorry, we call it an Overflow in the Aquarium hobby..

My thought would also be to raise the water level, however My understanding was that the proper water level should be in the middle of the Skimmer, which is where it's at.

I currently have just the standard Eyeball. (Is there a better return jet to use?)

The Return Jet IS under water. I assume there is some sort of "Standard" as it came predrilled from the factory.

Thanks,

-ThaChad
 

YippeeSkippy

Mod Squad
LifeTime Supporter
Jan 17, 2012
9,411
Evans, Georgia
Re: Return Jet creating Venturi Tornado

You can raise it up to about 3/4 of the skimmer box and see if that improves the situation.

My next suggestion was going to be to add some PVC pipe to the return making its exit down in the water. It would entail a little creative play with PVC.

I take it that there are no valves you can adjust and is this the *only* return in your pool?

Yip :flower:
 

ThaChad

Well-known member
Sep 28, 2016
71
Central, Illinois
You can raise it up to about 3/4 of the skimmer box and see if that improves the situation.

My next suggestion was going to be to add some PVC pipe to the return making its exit down in the water. It would entail a little creative play with PVC.

I take it that there are no valves you can adjust and is this the *only* return in your pool?

Yip :flower:

That is correct. Only return. (Though I would have liked another return at the other end as it's along Oval pool)

I have a 2-state pump, but no valves. Would possibly a Larger eyeball be better? or would that cause there to not be enough flow/pressure to properly circulate the 33' long oval pool?

Thanks,

-ThaChad
 

YippeeSkippy

Mod Squad
LifeTime Supporter
Jan 17, 2012
9,411
Evans, Georgia
I don't know the answer to those last two questions.

Try raising the water level and lets see if that helps first before you go changing anything significant.
 

richierich

Bronze Supporter
Jul 12, 2013
584
Long Island, NY
Yep had that same problem with my new pool. Manual and installer said to fill halfway to the skimmer. I was like what is this horrible sucking noise, I thought I had an air leak or something. Finally after reading online, it suggested filling to 3/4 up on the skimmer box and that noise was gone.

And NO air bubbles whatsoever in my pump
 

borjis

LifeTime Supporter
Aug 19, 2014
2,705
Pacific NW
Also keep in mind, though it is rare, some skimmers are mounted too high or too low internally.
(no idea why but it happens sometimes)

Mine was installed too high. If I have the water level at the half way marks on the opening, it starts
to vortex and gasp for air.
 

Mickelin

LifeTime Supporter
Jun 3, 2015
261
Stockholm, Sweden
Also make sure the return jet is pointed down towards the bottom of the pool, at a 45 degree angle and away from the skimmer. This helps create a circular flow of the water, improving circulation and skimming.
 
Thread starter Other Threads of Interest Forum Replies Date
ensorkyle Above Ground Pools 1
A Pumps, Filters, and Plumbing 2
Dcookster Pumps, Filters, and Plumbing 3

Other Threads of Interest