Re: Water softener causing air ingress into lines...
Heres an idea. I was told this is whats happening to mine. I have a 35gal. bladder tank w/ no water softener. The water will spit and gurgle so bad sometimes, that it'll knock a glass out of your hand if you have it under the faucet.
After an inspection, i was told that my standpipe?( the pipe in the ground coming from the well) has a crack and is sucking air.- NOT a cheap fix. Whats worse is i have a deep well. I was told that whoever dug the well passed up a good clean source of water and went deeper to a sediment laden well. Our water is basically liquid rock. I've never had a softener last more than 3 yrs.
We still do not know if you have a captive air tank or a bladder tank. Also if your 'new' tank has a bladder and your well system had an air charger system that was not disabled, you could be filling your bladder with air instead of water.
If your tank is the older style, straight walled captive air tank and you have an air charger system on the well line but the air bleed off valve is not working or not there, you will get excess air in the water.
...and btw, how do you know that the tank is holding pressure? The only way to know for sure is to shut off the well pump and drain the tank til no more water comes out, then check the pressure.
Just to add a couple of things
If you have a leak in your bladder or no bladder at all the air charge in your tank will diminish after awhile (water will pull out/mix with the air)
and if your pump is not big enough to keep up with demand there goes your air charge as well.
If you have an older jet pump you may be finding that it cycles on and off due to the foot valve leaking, eventually you will loose your prime.
You may want to try lifting up the submersible pump/jet pump foot valve till you get above the particulate area (try and find that sweat spot were the waters separate muddy from clear, hopefully there is not alot of ground preasure pushing the dirty water higher in the well.
Oh and your stand pipe, how deep is the well????
If you have a submersible pump and the well is less than 100 feet deep and the original pipe used was thick wall flexable pvc (the black stuff not ridgid white/grey)
Two guys can re and re that chunk in a couple hours.