Hello

I was getting about 5 gallons drawdown from my 8 year old 40 gallon
pressure tanks.

I have a 50' well. Recently, my water pressure started to go down to
nothing, and I noticed my untreated water looks green, not the usual
iron-brown color.

I decided to install a new pressure tank. I thought that solved the
problem...but no.

To regain water pressure, I turn on a faucet on and turn (on and off)
the incoming water valve (after the tank).

That works for awhile.

Any suggestions?