wow, youd think someone would want to save some of the money they’re spending fixing fixes.
Yes oxygen is needed and most well water will have an amount fo dissolved oxygen in it. As the water comes out of the well the pressure is decreased to your switch settings and that depressurizatiun helps that to happen. In many cases it’s just enough to oxidize some of the iron. Iron also oxidizes in the top part of the well too, from the static water level down to the pumping level where air does it. usually some of the rust falls and when the pump comes on, the rust is sucked in and pumped to the tank and plumbing. Then it will settle out in the tank and plumbing. You might be surprised at how much can be in your pressure tank.
Quality Water Associates