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Captive air tanks did away with the problem of water logging and also gave the customer far less rusty water than the old-style pressure tanks because the water in the tank and the air were completely separated. This, however, created a whole new situation regarding iron filtration.
Looking at a water map of the U.S. recently, I noticed that most of the Great Lakes states — which include Michigan, Ohio, Indiana, Illinois, Wisconsin and Minnesota, plus the non-Great Lakes state of Iowa — all have groundwater that is classified as very hard.
Two months ago I wrote that in my next column I would write about something a bladder tank won’t do, in my opinion, and that is make up for a weak well or slow pump.
As I said in my last column, after years, indeed, of trying to keep air in pressure tanks, our industry figured out that the air was being eaten by the water.