Air in my system

[MStein]

I have a 2 year old Hayward sand filter (500lbs) and valve. The valve sounds like it has air trapped inside but my filter sounds like a washing machine. No visible leaks anywhere. Please listen to the video. I tried opening the bleeder valve but only water comes out, no air.

Please help

 

[MStein]

Does anyone know what would cause the filter to sound like this? Anybody?

 

[PoolStored]

Is your pump basket full of water (no air under the lid)?
How far up the skimmer mouth is the water?
Are weir doors installed?

 

[MStein]

Is your pump basket full of water (no air under the lid)?
How far up the skimmer mouth is the water?
Are weir doors installed?

Well at the time of the video, there was no air in the pump basket, but later that night I found the pool sweep (not on) but flouting on the surface and blowing air. The pump basket was full of air. So something happened during the evening that let all that air into the system.
Water levels in the pool are correct.
Doors installed? Do you mean a check valve? no.

 

[PoolStored]

Weir doors are the doors in the skimmers that flap and create the skimming action.

 

[MStein]

Weir doors are the doors in the skimmers that flap and create the skimming action.

oh yeah I got one of those.

 

[PoolStored]

Maybe 1poolman1 has heard this...