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#936932 - 04/13/18 11:02 AM Re: Bladder tank air pressure [Re: bilvihur]
CabinConnection Offline
Bigfoot
Carpal Tunnel

Registered: 01/20/04
Posts: 52879
Loc: The Indianhead's Left Nostril....

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#936977 - 04/13/18 07:33 PM Re: Bladder tank air pressure [Re: bilvihur]
kerk Offline
Super Handyman

Registered: 11/09/06
Posts: 1995
Loc: N. Florida
Originally Posted By bilvihur
Remember, the bladder fills with water, and the air fills the rest of the tank. It's quite possible to have air leaks with an intact bladder.


Okay, can one check the air pressure 'without' draining the tank? And if so, what should the reading be?

If I check it right now the air pressure will read the same as the water pressure, and that doesn't sound right to me.

The back tires on my pickup will read the same psi whether the bed is empty, or has 1000 lbs in it, so I wouldn't expect the water pressure in the bladder to effect the air pressure.
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#936979 - 04/13/18 08:47 PM Re: Bladder tank air pressure [Re: kerk]
bilvihur Offline
Carpal Tunnel

Registered: 02/04/05
Posts: 3382
Loc: Hudson Valley, New York
The tank should be charged with an empty bladder to whatever the cut-in pressure is on the switch. Then, as the bladder fills with water, the tank air is compressed until the cut-out setting is reached. At that point the air pressure and water pressure are the same.
If you put enough weight in the back of your pickup to overcome the springs/shocks, the air pressure in your tires would indeed rise.


Edited by bilvihur (04/14/18 06:45 AM)
Edit Reason: Weight is weight, regardless of being absorbed by springs.
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#936983 - 04/13/18 10:55 PM Re: Bladder tank air pressure [Re: kerk]
jdevlin Offline
Carpal Tunnel

Registered: 09/09/02
Posts: 9768
Loc: Welland Ont. Canada
Quote:
Okay, can one check the air pressure 'without' draining the tank? And if so, what should the reading be?

You can check the bladder pressure without draining, but it will always be the same as the water pressure

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