A&A Leaf Canister Gaining Air

[TheIdiotDad]

My A&A Manufacturing leaf canister slowly gets air in the top and that sends some air into the Pentair pump basket as well. When I backwash, all air is pushed out and there is not one bubble. I put the pool on filter, and over the course of a few days there is quite a bit of air and the pressure really drops.

Do you have any ideas I can test?

Thank you!

 

[proavia]

How old is your LeafVac? Show us a picture.
I have one of the original designs - still going strong after 24 years. I've had to replace the basket and O-ring.

Remove the lid
Take out the O-ring
Clean the O-ring, lid mating surface and canister mating surface
Lube O-ring, reinstall O-ring and put the lid back on.

Do not over-tighten the lid
If you are still having an issue, a new O-ring might help.

 

[TheIdiotDad]

11 years old. O-ring is about 1 year and P.F.

 

[proavia]

That's the current model.

Have a look at this Amazon listing and view the pics to see where all the parts/pieces go.

Amazon.com

Two other possibilities - there is a union on the side (at shown in your pic) and a union on the bottom. Both of those have O-rings as well. Might be time to check those and also the tightness of the unions.
Also - inspect the canister for any cracks.

 

[TheIdiotDad]

It’s completely pressurized right now, but air will slowly seep in over a few days. Drives me nuts!

 

[TheIdiotDad]

That's the current model.

Have a look at this Amazon listing and view the pics to see where all the parts/pieces go.

Amazon.com

Two other possibilities - there is a union on the side (at shown in your pic) and a union on the bottom. Both of those have O-rings as well. Might be time to check those and also the tightness of the unions.
Also - inspect the canister for any cracks.

Thanks for the reply. I will check it out.

 

[proavia]

TheIdiotDad wrote: "It’s completely pressurized right now, but air will slowly seep in over a few days. Drives me nuts!"

The LeafVac is not pressurized. It's on the suction side of the pump.
With the pump on, no air or water will leak from the LeafVac - but air can get sucked in thru it.