Stop in for a cup of coffee

I understand the water logging on tank with no bladder. But on a bladder tank, the only way it should ever water log is if the bladder fails. If it's a vertical tank that is plumbed like that, I could see it still working as you said even with a failed bladder. But, this is horizontal,so I believe once the bladder fails, your screwed. I could leave higher air pressure on it for a while and maybe it would push any water through... I will mess with it again sometime this week and tap on tank to see where the water/air is. I didn't do that.

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All the bladder is for, is to separate the tank and water. The bladder will completely fill the tank if there is no air. The bladder is not sufficient to push water out on itself. It is the air pushing on the bladder. Again the Woopie Cushion you can keep putting water or air into it but it is the outside pressure (air) that makes it blow. My tank is fiberglass with a bladder and is a vertical tank but I also have a submersible pump. You have what is called a jetpack. A different principle where you have two lines going out. Hard to explain on here but the metal thing in the well uses the principle of say a sand blaster. If you push the air (in your case water) through a small orifice it creates a suction to draw the water up out of the well. and pushes it back up the smaller line into your tank. So when your pump is not running you have no pressure being applied except from the air in the tank to move it through your house..