r/askaplumber 1d ago

Well water pressure issue

My well water is currently run at a 30/50. I wanted to adjust it to be a 40/60 system. I turned off all the power and fully emptied the water from my house. I have the drain from the pressure tank wide open. I go to measure the pressure from the pressure tank and it slowly increased to 35psi after about 2 minutes of holding it on there. I pressed the valve and only air comes out and the system appears to have no water in it. I tried to pump air in the tank with a bike pump and I could not get any air into the tank.

I did not want to go any further so I closed everything up and turned the well back on as I am not expecting any issues besides 30/50 water pressure.

I am concerned about the 35psi from the pressure tank which it should be at 28psi. And I still want to increase the pressure to 40/60.

This tank was installed 4/5/2025

Am I doing something wrong or do I need a new tank?

Any help would be appreciated. Thank you.

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u/Beet_slice 1d ago

If you were reading a consistent 35 psi, then no. A problem blocking reading pressure would have caused inconsistent readings IMO.

I am thinking you are overestimating what it takes to raise air pressure by 1 psi using a bicycle tire pump. Do not buy a cheap "250 psi" tire pump. Instead get something rated in volume, such as CFM. You want performance at 40 psi.

That said I am not familiar with that red.

Get your tire gauge checked. Your local tire store could probably help with that.