Is it normal for the well pressure tank to lose its air pocket?

[nyone]

I didn't even know they made non-bladder tanks anymore. Yeah, the type tank you have is prone to that. I think over time the air gets absorbed into the water.

Me either.

I would replace the tank so you stop having to mess with it. That tank cant be very new.

 

[stephenh]

I have a bladder tank and twice a year or so I have to add air. About a year ago, I researched new bladder tanks and found they and the non-bladders are priced reasonably. Just in case my bladder goes...I bought this Sears tank maybe 35 years ago for less than $100 and it's still going. Of course, not available at Sears now.

I have checked the air valve and etc on my tank and cannot detect air leakage. It must be so slow that it takes nearly a year to completely empty [the bladder]. It is a maintenance item, check the air pressure. I have no experience with a bladderless tank.